21491370

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{7703}}^1$

素因数の和:7747

約数の個数: 48

約数和(自身を含む): 57687552

約数和(自身を除く): 36196182

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 31, 45, 62, 90, 93, 155, 186, 279, 310, 465, 558, 930, 1395, 2790, 7703, 15406, 23109, 38515, 46218, 69327, 77030, 115545, 138654, 231090, 238793, 346635, 477586, 693270, 716379, 1193965, 1432758, 2149137, 2387930, 3581895, 4298274, 7163790, 10745685, 21491370]

約数ペア:

[(1, 21491370), (2, 10745685), (3, 7163790), (5, 4298274), (6, 3581895), (9, 2387930), (10, 2149137), (15, 1432758), (18, 1193965), (30, 716379), (31, 693270), (45, 477586), (62, 346635), (90, 238793), (93, 231090), (155, 138654), (186, 115545), (279, 77030), (310, 69327), (465, 46218), (558, 38515), (930, 23109), (1395, 15406), (2790, 7703)]