21332532

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{67}}^1\times {\mathrm{157}}^1$

素因数の和:257

約数の個数: 72

約数和(自身を含む): 55052256

約数和(自身を除く): 33719724

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 67, 78, 134, 156, 157, 169, 201, 268, 314, 338, 402, 471, 507, 628, 676, 804, 871, 942, 1014, 1742, 1884, 2028, 2041, 2613, 3484, 4082, 5226, 6123, 8164, 10452, 10519, 11323, 12246, 21038, 22646, 24492, 26533, 31557, 33969, 42076, 45292, 53066, 63114, 67938, 79599, 106132, 126228, 135876, 136747, 159198, 273494, 318396, 410241, 546988, 820482, 1640964, 1777711, 3555422, 5333133, 7110844, 10666266, 21332532]

約数ペア:

[(1, 21332532), (2, 10666266), (3, 7110844), (4, 5333133), (6, 3555422), (12, 1777711), (13, 1640964), (26, 820482), (39, 546988), (52, 410241), (67, 318396), (78, 273494), (134, 159198), (156, 136747), (157, 135876), (169, 126228), (201, 106132), (268, 79599), (314, 67938), (338, 63114), (402, 53066), (471, 45292), (507, 42076), (628, 33969), (676, 31557), (804, 26533), (871, 24492), (942, 22646), (1014, 21038), (1742, 12246), (1884, 11323), (2028, 10519), (2041, 10452), (2613, 8164), (3484, 6123), (4082, 5226)]