21296970

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{2851}}^1$

素因数の和:2947

約数の個数: 48

約数和(自身を含む): 56058912

約数和(自身を除く): 34761942

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 83, 90, 166, 249, 415, 498, 747, 830, 1245, 1494, 2490, 2851, 3735, 5702, 7470, 8553, 14255, 17106, 25659, 28510, 42765, 51318, 85530, 128295, 236633, 256590, 473266, 709899, 1183165, 1419798, 2129697, 2366330, 3549495, 4259394, 7098990, 10648485, 21296970]

約数ペア:

[(1, 21296970), (2, 10648485), (3, 7098990), (5, 4259394), (6, 3549495), (9, 2366330), (10, 2129697), (15, 1419798), (18, 1183165), (30, 709899), (45, 473266), (83, 256590), (90, 236633), (166, 128295), (249, 85530), (415, 51318), (498, 42765), (747, 28510), (830, 25659), (1245, 17106), (1494, 14255), (2490, 8553), (2851, 7470), (3735, 5702)]