21919014

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1993}}^1$

素因数の和:2061

約数の個数: 48

約数和(自身を含む): 52258752

約数和(自身を除く): 30339738

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 47, 78, 94, 117, 141, 234, 282, 423, 611, 846, 1222, 1833, 1993, 3666, 3986, 5499, 5979, 10998, 11958, 17937, 25909, 35874, 51818, 77727, 93671, 155454, 187342, 233181, 281013, 466362, 562026, 843039, 1217723, 1686078, 2435446, 3653169, 7306338, 10959507, 21919014]

約数ペア:

[(1, 21919014), (2, 10959507), (3, 7306338), (6, 3653169), (9, 2435446), (13, 1686078), (18, 1217723), (26, 843039), (39, 562026), (47, 466362), (78, 281013), (94, 233181), (117, 187342), (141, 155454), (234, 93671), (282, 77727), (423, 51818), (611, 35874), (846, 25909), (1222, 17937), (1833, 11958), (1993, 10998), (3666, 5979), (3986, 5499)]