21280608

素因数分解:

$2^5\times 3^2\times {\mathrm{19}}^1\times {\mathrm{3889}}^1$

素因数の和:3924

約数の個数: 72

約数和(自身を含む): 63718200

約数和(自身を除く): 42437592

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 32, 36, 38, 48, 57, 72, 76, 96, 114, 144, 152, 171, 228, 288, 304, 342, 456, 608, 684, 912, 1368, 1824, 2736, 3889, 5472, 7778, 11667, 15556, 23334, 31112, 35001, 46668, 62224, 70002, 73891, 93336, 124448, 140004, 147782, 186672, 221673, 280008, 295564, 373344, 443346, 560016, 591128, 665019, 886692, 1120032, 1182256, 1330038, 1773384, 2364512, 2660076, 3546768, 5320152, 7093536, 10640304, 21280608]

約数ペア:

[(1, 21280608), (2, 10640304), (3, 7093536), (4, 5320152), (6, 3546768), (8, 2660076), (9, 2364512), (12, 1773384), (16, 1330038), (18, 1182256), (19, 1120032), (24, 886692), (32, 665019), (36, 591128), (38, 560016), (48, 443346), (57, 373344), (72, 295564), (76, 280008), (96, 221673), (114, 186672), (144, 147782), (152, 140004), (171, 124448), (228, 93336), (288, 73891), (304, 70002), (342, 62224), (456, 46668), (608, 35001), (684, 31112), (912, 23334), (1368, 15556), (1824, 11667), (2736, 7778), (3889, 5472)]