21962004

素因数分解:

$2^2\times 3^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1\times {\mathrm{173}}^1$

素因数の和:400

約数の個数: 48

約数和(自身を含む): 52617600

約数和(自身を除く): 30655596

約数列:

[1, 2, 3, 4, 6, 12, 71, 142, 149, 173, 213, 284, 298, 346, 426, 447, 519, 596, 692, 852, 894, 1038, 1788, 2076, 10579, 12283, 21158, 24566, 25777, 31737, 36849, 42316, 49132, 51554, 63474, 73698, 77331, 103108, 126948, 147396, 154662, 309324, 1830167, 3660334, 5490501, 7320668, 10981002, 21962004]

約数ペア:

[(1, 21962004), (2, 10981002), (3, 7320668), (4, 5490501), (6, 3660334), (12, 1830167), (71, 309324), (142, 154662), (149, 147396), (173, 126948), (213, 103108), (284, 77331), (298, 73698), (346, 63474), (426, 51554), (447, 49132), (519, 42316), (596, 36849), (692, 31737), (852, 25777), (894, 24566), (1038, 21158), (1788, 12283), (2076, 10579)]