21297198

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{1993}}^1$

素因数の和:2148

約数の個数: 32

約数和(自身を含む): 46228896

約数和(自身を除く): 24931698

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 137, 274, 411, 822, 1781, 1993, 3562, 3986, 5343, 5979, 10686, 11958, 25909, 51818, 77727, 155454, 273041, 546082, 819123, 1638246, 3549533, 7099066, 10648599, 21297198]

約数ペア:

[(1, 21297198), (2, 10648599), (3, 7099066), (6, 3549533), (13, 1638246), (26, 819123), (39, 546082), (78, 273041), (137, 155454), (274, 77727), (411, 51818), (822, 25909), (1781, 11958), (1993, 10686), (3562, 5979), (3986, 5343)]