21000427896

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{82619}}^1$

素因数の和:82741

約数の個数: 128

約数和(自身を含む): 64245312000

約数和(自身を除く): 43244884104

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 17, 21, 24, 28, 34, 42, 51, 56, 68, 84, 89, 102, 119, 136, 168, 178, 204, 238, 267, 356, 357, 408, 476, 534, 623, 712, 714, 952, 1068, 1246, 1428, 1513, 1869, 2136, 2492, 2856, 3026, 3738, 4539, 4984, 6052, 7476, 9078, 10591, 12104, 14952, 18156, 21182, 31773, 36312, 42364, 63546, 82619, 84728, 127092, 165238, 247857, 254184, 330476, 495714, 578333, 660952, 991428, 1156666, 1404523, 1734999, 1982856, 2313332, 2809046, 3469998, 4213569, 4626664, 5618092, 6939996, 7353091, 8427138, 9831661, 11236184, 13879992, 14706182, 16854276, 19663322, 22059273, 29412364, 29494983, 33708552, 39326644, 44118546, 51471637, 58824728, 58989966, 78653288, 88237092, 102943274, 117979932, 125002547, 154414911, 176474184, 205886548, 235959864, 250005094, 308829822, 375007641, 411773096, 500010188, 617659644, 750015282, 875017829, 1000020376, 1235319288, 1500030564, 1750035658, 2625053487, 3000061128, 3500071316, 5250106974, 7000142632, 10500213948, 21000427896]

約数ペア:

[(1, 21000427896), (2, 10500213948), (3, 7000142632), (4, 5250106974), (6, 3500071316), (7, 3000061128), (8, 2625053487), (12, 1750035658), (14, 1500030564), (17, 1235319288), (21, 1000020376), (24, 875017829), (28, 750015282), (34, 617659644), (42, 500010188), (51, 411773096), (56, 375007641), (68, 308829822), (84, 250005094), (89, 235959864), (102, 205886548), (119, 176474184), (136, 154414911), (168, 125002547), (178, 117979932), (204, 102943274), (238, 88237092), (267, 78653288), (356, 58989966), (357, 58824728), (408, 51471637), (476, 44118546), (534, 39326644), (623, 33708552), (712, 29494983), (714, 29412364), (952, 22059273), (1068, 19663322), (1246, 16854276), (1428, 14706182), (1513, 13879992), (1869, 11236184), (2136, 9831661), (2492, 8427138), (2856, 7353091), (3026, 6939996), (3738, 5618092), (4539, 4626664), (4984, 4213569), (6052, 3469998), (7476, 2809046), (9078, 2313332), (10591, 1982856), (12104, 1734999), (14952, 1404523), (18156, 1156666), (21182, 991428), (31773, 660952), (36312, 578333), (42364, 495714), (63546, 330476), (82619, 254184), (84728, 247857), (127092, 165238)]