21000078

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{1583}}^1$

素因数の和:1669

約数の個数: 48

約数和(自身を含む): 50409216

約数和(自身を除く): 29409138

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 67, 99, 134, 198, 201, 402, 603, 737, 1206, 1474, 1583, 2211, 3166, 4422, 4749, 6633, 9498, 13266, 14247, 17413, 28494, 34826, 52239, 104478, 106061, 156717, 212122, 313434, 318183, 636366, 954549, 1166671, 1909098, 2333342, 3500013, 7000026, 10500039, 21000078]

約数ペア:

[(1, 21000078), (2, 10500039), (3, 7000026), (6, 3500013), (9, 2333342), (11, 1909098), (18, 1166671), (22, 954549), (33, 636366), (66, 318183), (67, 313434), (99, 212122), (134, 156717), (198, 106061), (201, 104478), (402, 52239), (603, 34826), (737, 28494), (1206, 17413), (1474, 14247), (1583, 13266), (2211, 9498), (3166, 6633), (4422, 4749)]