20883798

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{419}}^1$

素因数の和:514

約数の個数: 64

約数和(自身を含む): 50803200

約数和(自身を除く): 29919402

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 71, 78, 117, 142, 213, 234, 351, 419, 426, 639, 702, 838, 923, 1257, 1278, 1846, 1917, 2514, 2769, 3771, 3834, 5447, 5538, 7542, 8307, 10894, 11313, 16341, 16614, 22626, 24921, 29749, 32682, 49023, 49842, 59498, 89247, 98046, 147069, 178494, 267741, 294138, 386737, 535482, 773474, 803223, 1160211, 1606446, 2320422, 3480633, 6961266, 10441899, 20883798]

約数ペア:

[(1, 20883798), (2, 10441899), (3, 6961266), (6, 3480633), (9, 2320422), (13, 1606446), (18, 1160211), (26, 803223), (27, 773474), (39, 535482), (54, 386737), (71, 294138), (78, 267741), (117, 178494), (142, 147069), (213, 98046), (234, 89247), (351, 59498), (419, 49842), (426, 49023), (639, 32682), (702, 29749), (838, 24921), (923, 22626), (1257, 16614), (1278, 16341), (1846, 11313), (1917, 10894), (2514, 8307), (2769, 7542), (3771, 5538), (3834, 5447)]