21400992

素因数分解:

$2^5\times 3^2\times {\mathrm{19}}^1\times {\mathrm{3911}}^1$

素因数の和:3946

約数の個数: 72

約数和(自身を含む): 64078560

約数和(自身を除く): 42677568

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, 3911, 5472, 7822, 11733, 15644, 23466, 31288, 35199, 46932, 62576, 70398, 74309, 93864, 125152, 140796, 148618, 187728, 222927, 281592, 297236, 375456, 445854, 563184, 594472, 668781, 891708, 1126368, 1188944, 1337562, 1783416, 2377888, 2675124, 3566832, 5350248, 7133664, 10700496, 21400992]

約数ペア:

[(1, 21400992), (2, 10700496), (3, 7133664), (4, 5350248), (6, 3566832), (8, 2675124), (9, 2377888), (12, 1783416), (16, 1337562), (18, 1188944), (19, 1126368), (24, 891708), (32, 668781), (36, 594472), (38, 563184), (48, 445854), (57, 375456), (72, 297236), (76, 281592), (96, 222927), (114, 187728), (144, 148618), (152, 140796), (171, 125152), (228, 93864), (288, 74309), (304, 70398), (342, 62576), (456, 46932), (608, 35199), (684, 31288), (912, 23466), (1368, 15644), (1824, 11733), (2736, 7822), (3911, 5472)]