21000994572

素因数分解:

$2^2\times 3^1\times {\mathrm{383}}^1\times {\mathrm{1693}}^1\times {\mathrm{2699}}^1$

素因数の和:4782

約数の個数: 48

約数和(自身を含む): 49177497600

約数和(自身を除く): 28176503028

約数列:

[1, 2, 3, 4, 6, 12, 383, 766, 1149, 1532, 1693, 2298, 2699, 3386, 4596, 5079, 5398, 6772, 8097, 10158, 10796, 16194, 20316, 32388, 648419, 1033717, 1296838, 1945257, 2067434, 2593676, 3101151, 3890514, 4134868, 4569407, 6202302, 7781028, 9138814, 12404604, 13708221, 18277628, 27416442, 54832884, 1750082881, 3500165762, 5250248643, 7000331524, 10500497286, 21000994572]

約数ペア:

[(1, 21000994572), (2, 10500497286), (3, 7000331524), (4, 5250248643), (6, 3500165762), (12, 1750082881), (383, 54832884), (766, 27416442), (1149, 18277628), (1532, 13708221), (1693, 12404604), (2298, 9138814), (2699, 7781028), (3386, 6202302), (4596, 4569407), (5079, 4134868), (5398, 3890514), (6772, 3101151), (8097, 2593676), (10158, 2067434), (10796, 1945257), (16194, 1296838), (20316, 1033717), (32388, 648419)]