221981928

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{21661}}^1$

素因数の和:21738

約数の個数: 64

約数和(自身を含む): 644661120

約数和(自身を除く): 422679192

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 61, 84, 122, 168, 183, 244, 366, 427, 488, 732, 854, 1281, 1464, 1708, 2562, 3416, 5124, 10248, 21661, 43322, 64983, 86644, 129966, 151627, 173288, 259932, 303254, 454881, 519864, 606508, 909762, 1213016, 1321321, 1819524, 2642642, 3639048, 3963963, 5285284, 7927926, 9249247, 10570568, 15855852, 18498494, 27747741, 31711704, 36996988, 55495482, 73993976, 110990964, 221981928]

約数ペア:

[(1, 221981928), (2, 110990964), (3, 73993976), (4, 55495482), (6, 36996988), (7, 31711704), (8, 27747741), (12, 18498494), (14, 15855852), (21, 10570568), (24, 9249247), (28, 7927926), (42, 5285284), (56, 3963963), (61, 3639048), (84, 2642642), (122, 1819524), (168, 1321321), (183, 1213016), (244, 909762), (366, 606508), (427, 519864), (488, 454881), (732, 303254), (854, 259932), (1281, 173288), (1464, 151627), (1708, 129966), (2562, 86644), (3416, 64983), (5124, 43322), (10248, 21661)]