21534512

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{1931}}^1$

素因数の和:1997

約数の個数: 40

約数和(自身を含む): 45278352

約数和(自身を除く): 23743840

約数列:

[1, 2, 4, 8, 16, 17, 34, 41, 68, 82, 136, 164, 272, 328, 656, 697, 1394, 1931, 2788, 3862, 5576, 7724, 11152, 15448, 30896, 32827, 65654, 79171, 131308, 158342, 262616, 316684, 525232, 633368, 1266736, 1345907, 2691814, 5383628, 10767256, 21534512]

約数ペア:

[(1, 21534512), (2, 10767256), (4, 5383628), (8, 2691814), (16, 1345907), (17, 1266736), (34, 633368), (41, 525232), (68, 316684), (82, 262616), (136, 158342), (164, 131308), (272, 79171), (328, 65654), (656, 32827), (697, 30896), (1394, 15448), (1931, 11152), (2788, 7724), (3862, 5576)]