21204372

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{479}}^1$

素因数の和:541

約数の個数: 96

約数和(自身を含む): 61931520

約数和(自身を除く): 40727148

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 17, 21, 28, 31, 34, 42, 51, 62, 68, 84, 93, 102, 119, 124, 186, 204, 217, 238, 357, 372, 434, 476, 479, 527, 651, 714, 868, 958, 1054, 1302, 1428, 1437, 1581, 1916, 2108, 2604, 2874, 3162, 3353, 3689, 5748, 6324, 6706, 7378, 8143, 10059, 11067, 13412, 14756, 14849, 16286, 20118, 22134, 24429, 29698, 32572, 40236, 44268, 44547, 48858, 57001, 59396, 89094, 97716, 103943, 114002, 171003, 178188, 207886, 228004, 252433, 311829, 342006, 415772, 504866, 623658, 684012, 757299, 1009732, 1247316, 1514598, 1767031, 3029196, 3534062, 5301093, 7068124, 10602186, 21204372]

約数ペア:

[(1, 21204372), (2, 10602186), (3, 7068124), (4, 5301093), (6, 3534062), (7, 3029196), (12, 1767031), (14, 1514598), (17, 1247316), (21, 1009732), (28, 757299), (31, 684012), (34, 623658), (42, 504866), (51, 415772), (62, 342006), (68, 311829), (84, 252433), (93, 228004), (102, 207886), (119, 178188), (124, 171003), (186, 114002), (204, 103943), (217, 97716), (238, 89094), (357, 59396), (372, 57001), (434, 48858), (476, 44547), (479, 44268), (527, 40236), (651, 32572), (714, 29698), (868, 24429), (958, 22134), (1054, 20118), (1302, 16286), (1428, 14849), (1437, 14756), (1581, 13412), (1916, 11067), (2108, 10059), (2604, 8143), (2874, 7378), (3162, 6706), (3353, 6324), (3689, 5748)]