21980608

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{911}}^1$

素因数の和:965

約数の個数: 56

約数和(自身を含む): 48646080

約数和(自身を除く): 26665472

約数列:

[1, 2, 4, 8, 13, 16, 26, 29, 32, 52, 58, 64, 104, 116, 208, 232, 377, 416, 464, 754, 832, 911, 928, 1508, 1822, 1856, 3016, 3644, 6032, 7288, 11843, 12064, 14576, 23686, 24128, 26419, 29152, 47372, 52838, 58304, 94744, 105676, 189488, 211352, 343447, 378976, 422704, 686894, 757952, 845408, 1373788, 1690816, 2747576, 5495152, 10990304, 21980608]

約数ペア:

[(1, 21980608), (2, 10990304), (4, 5495152), (8, 2747576), (13, 1690816), (16, 1373788), (26, 845408), (29, 757952), (32, 686894), (52, 422704), (58, 378976), (64, 343447), (104, 211352), (116, 189488), (208, 105676), (232, 94744), (377, 58304), (416, 52838), (464, 47372), (754, 29152), (832, 26419), (911, 24128), (928, 23686), (1508, 14576), (1822, 12064), (1856, 11843), (3016, 7288), (3644, 6032)]