21356490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{179}}^1$

素因数の和:327

約数の個数: 64

約数和(自身を含む): 53343360

約数和(自身を除く): 31986870

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 41, 82, 97, 123, 179, 194, 205, 246, 291, 358, 410, 485, 537, 582, 615, 895, 970, 1074, 1230, 1455, 1790, 2685, 2910, 3977, 5370, 7339, 7954, 11931, 14678, 17363, 19885, 22017, 23862, 34726, 36695, 39770, 44034, 52089, 59655, 73390, 86815, 104178, 110085, 119310, 173630, 220170, 260445, 520890, 711883, 1423766, 2135649, 3559415, 4271298, 7118830, 10678245, 21356490]

約数ペア:

[(1, 21356490), (2, 10678245), (3, 7118830), (5, 4271298), (6, 3559415), (10, 2135649), (15, 1423766), (30, 711883), (41, 520890), (82, 260445), (97, 220170), (123, 173630), (179, 119310), (194, 110085), (205, 104178), (246, 86815), (291, 73390), (358, 59655), (410, 52089), (485, 44034), (537, 39770), (582, 36695), (615, 34726), (895, 23862), (970, 22017), (1074, 19885), (1230, 17363), (1455, 14678), (1790, 11931), (2685, 7954), (2910, 7339), (3977, 5370)]