21463408

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{397}}^1$

素因数の和:545

約数の個数: 40

約数和(自身を含む): 43429760

約数和(自身を除く): 21966352

約数列:

[1, 2, 4, 8, 16, 31, 62, 109, 124, 218, 248, 397, 436, 496, 794, 872, 1588, 1744, 3176, 3379, 6352, 6758, 12307, 13516, 24614, 27032, 43273, 49228, 54064, 86546, 98456, 173092, 196912, 346184, 692368, 1341463, 2682926, 5365852, 10731704, 21463408]

約数ペア:

[(1, 21463408), (2, 10731704), (4, 5365852), (8, 2682926), (16, 1341463), (31, 692368), (62, 346184), (109, 196912), (124, 173092), (218, 98456), (248, 86546), (397, 54064), (436, 49228), (496, 43273), (794, 27032), (872, 24614), (1588, 13516), (1744, 12307), (3176, 6758), (3379, 6352)]