20953848

素因数分解:

$2^3\times 3^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1$

素因数の和:316

約数の個数: 64

約数和(自身を含む): 54149760

約数和(自身を除く): 33195912

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 67, 83, 134, 157, 166, 201, 249, 268, 314, 332, 402, 471, 498, 536, 628, 664, 804, 942, 996, 1256, 1608, 1884, 1992, 3768, 5561, 10519, 11122, 13031, 16683, 21038, 22244, 26062, 31557, 33366, 39093, 42076, 44488, 52124, 63114, 66732, 78186, 84152, 104248, 126228, 133464, 156372, 252456, 312744, 873077, 1746154, 2619231, 3492308, 5238462, 6984616, 10476924, 20953848]

約数ペア:

[(1, 20953848), (2, 10476924), (3, 6984616), (4, 5238462), (6, 3492308), (8, 2619231), (12, 1746154), (24, 873077), (67, 312744), (83, 252456), (134, 156372), (157, 133464), (166, 126228), (201, 104248), (249, 84152), (268, 78186), (314, 66732), (332, 63114), (402, 52124), (471, 44488), (498, 42076), (536, 39093), (628, 33366), (664, 31557), (804, 26062), (942, 22244), (996, 21038), (1256, 16683), (1608, 13031), (1884, 11122), (1992, 10519), (3768, 5561)]