21397012

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{2027}}^1$

素因数の和:2080

約数の個数: 48

約数和(自身を含む): 47698560

約数和(自身を除く): 26301548

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 29, 52, 58, 91, 116, 182, 203, 364, 377, 406, 754, 812, 1508, 2027, 2639, 4054, 5278, 8108, 10556, 14189, 26351, 28378, 52702, 56756, 58783, 105404, 117566, 184457, 235132, 368914, 411481, 737828, 764179, 822962, 1528358, 1645924, 3056716, 5349253, 10698506, 21397012]

約数ペア:

[(1, 21397012), (2, 10698506), (4, 5349253), (7, 3056716), (13, 1645924), (14, 1528358), (26, 822962), (28, 764179), (29, 737828), (52, 411481), (58, 368914), (91, 235132), (116, 184457), (182, 117566), (203, 105404), (364, 58783), (377, 56756), (406, 52702), (754, 28378), (812, 26351), (1508, 14189), (2027, 10556), (2639, 8108), (4054, 5278)]