21150878840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{53309}}^1$

素因数の和:53449

約数の個数: 128

約数和(自身を含む): 59110128000

約数和(自身を除く): 37959249160

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 109, 130, 140, 182, 218, 260, 280, 364, 436, 455, 520, 545, 728, 763, 872, 910, 1090, 1417, 1526, 1820, 2180, 2834, 3052, 3640, 3815, 4360, 5668, 6104, 7085, 7630, 9919, 11336, 14170, 15260, 19838, 28340, 30520, 39676, 49595, 53309, 56680, 79352, 99190, 106618, 198380, 213236, 266545, 373163, 396760, 426472, 533090, 693017, 746326, 1066180, 1386034, 1492652, 1865815, 2132360, 2772068, 2985304, 3465085, 3731630, 4851119, 5544136, 5810681, 6930170, 7463260, 9702238, 11621362, 13860340, 14926520, 19404476, 23242724, 24255595, 27720680, 29053405, 38808952, 40674767, 46485448, 48511190, 58106810, 75538853, 81349534, 97022380, 116213620, 151077706, 162699068, 194044760, 203373835, 232427240, 302155412, 325398136, 377694265, 406747670, 528771971, 604310824, 755388530, 813495340, 1057543942, 1510777060, 1626990680, 2115087884, 2643859855, 3021554120, 4230175768, 5287719710, 10575439420, 21150878840]

約数ペア:

[(1, 21150878840), (2, 10575439420), (4, 5287719710), (5, 4230175768), (7, 3021554120), (8, 2643859855), (10, 2115087884), (13, 1626990680), (14, 1510777060), (20, 1057543942), (26, 813495340), (28, 755388530), (35, 604310824), (40, 528771971), (52, 406747670), (56, 377694265), (65, 325398136), (70, 302155412), (91, 232427240), (104, 203373835), (109, 194044760), (130, 162699068), (140, 151077706), (182, 116213620), (218, 97022380), (260, 81349534), (280, 75538853), (364, 58106810), (436, 48511190), (455, 46485448), (520, 40674767), (545, 38808952), (728, 29053405), (763, 27720680), (872, 24255595), (910, 23242724), (1090, 19404476), (1417, 14926520), (1526, 13860340), (1820, 11621362), (2180, 9702238), (2834, 7463260), (3052, 6930170), (3640, 5810681), (3815, 5544136), (4360, 4851119), (5668, 3731630), (6104, 3465085), (7085, 2985304), (7630, 2772068), (9919, 2132360), (11336, 1865815), (14170, 1492652), (15260, 1386034), (19838, 1066180), (28340, 746326), (30520, 693017), (39676, 533090), (49595, 426472), (53309, 396760), (56680, 373163), (79352, 266545), (99190, 213236), (106618, 198380)]