21000434720

素因数分解:

$2^5\times 5^1\times {\mathrm{47}}^1\times {\mathrm{191}}^1\times {\mathrm{14621}}^1$

素因数の和:14874

約数の個数: 96

約数和(自身を含む): 50937901056

約数和(自身を除く): 29937466336

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 47, 80, 94, 160, 188, 191, 235, 376, 382, 470, 752, 764, 940, 955, 1504, 1528, 1880, 1910, 3056, 3760, 3820, 6112, 7520, 7640, 8977, 14621, 15280, 17954, 29242, 30560, 35908, 44885, 58484, 71816, 73105, 89770, 116968, 143632, 146210, 179540, 233936, 287264, 292420, 359080, 467872, 584840, 687187, 718160, 1169680, 1374374, 1436320, 2339360, 2748748, 2792611, 3435935, 5497496, 5585222, 6871870, 10994992, 11170444, 13743740, 13963055, 21989984, 22340888, 27487480, 27926110, 44681776, 54974960, 55852220, 89363552, 109949920, 111704440, 131252717, 223408880, 262505434, 446817760, 525010868, 656263585, 1050021736, 1312527170, 2100043472, 2625054340, 4200086944, 5250108680, 10500217360, 21000434720]

約数ペア:

[(1, 21000434720), (2, 10500217360), (4, 5250108680), (5, 4200086944), (8, 2625054340), (10, 2100043472), (16, 1312527170), (20, 1050021736), (32, 656263585), (40, 525010868), (47, 446817760), (80, 262505434), (94, 223408880), (160, 131252717), (188, 111704440), (191, 109949920), (235, 89363552), (376, 55852220), (382, 54974960), (470, 44681776), (752, 27926110), (764, 27487480), (940, 22340888), (955, 21989984), (1504, 13963055), (1528, 13743740), (1880, 11170444), (1910, 10994992), (3056, 6871870), (3760, 5585222), (3820, 5497496), (6112, 3435935), (7520, 2792611), (7640, 2748748), (8977, 2339360), (14621, 1436320), (15280, 1374374), (17954, 1169680), (29242, 718160), (30560, 687187), (35908, 584840), (44885, 467872), (58484, 359080), (71816, 292420), (73105, 287264), (89770, 233936), (116968, 179540), (143632, 146210)]