21246260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{113}}^1$

素因数の和:225

約数の個数: 96

約数和(自身を含む): 55157760

約数和(自身を除く): 33911500

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 79, 85, 113, 119, 140, 158, 170, 226, 238, 316, 340, 395, 452, 476, 553, 565, 595, 790, 791, 1106, 1130, 1190, 1343, 1580, 1582, 1921, 2212, 2260, 2380, 2686, 2765, 3164, 3842, 3955, 5372, 5530, 6715, 7684, 7910, 8927, 9401, 9605, 11060, 13430, 13447, 15820, 17854, 18802, 19210, 26860, 26894, 35708, 37604, 38420, 44635, 47005, 53788, 62489, 67235, 89270, 94010, 124978, 134470, 151759, 178540, 188020, 249956, 268940, 303518, 312445, 607036, 624890, 758795, 1062313, 1249780, 1517590, 2124626, 3035180, 4249252, 5311565, 10623130, 21246260]

約数ペア:

[(1, 21246260), (2, 10623130), (4, 5311565), (5, 4249252), (7, 3035180), (10, 2124626), (14, 1517590), (17, 1249780), (20, 1062313), (28, 758795), (34, 624890), (35, 607036), (68, 312445), (70, 303518), (79, 268940), (85, 249956), (113, 188020), (119, 178540), (140, 151759), (158, 134470), (170, 124978), (226, 94010), (238, 89270), (316, 67235), (340, 62489), (395, 53788), (452, 47005), (476, 44635), (553, 38420), (565, 37604), (595, 35708), (790, 26894), (791, 26860), (1106, 19210), (1130, 18802), (1190, 17854), (1343, 15820), (1580, 13447), (1582, 13430), (1921, 11060), (2212, 9605), (2260, 9401), (2380, 8927), (2686, 7910), (2765, 7684), (3164, 6715), (3842, 5530), (3955, 5372)]