21475428

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1$

素因数の和:197

約数の個数: 96

約数和(自身を含む): 57576960

約数和(自身を除く): 36101532

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 29, 39, 47, 52, 58, 78, 87, 94, 101, 116, 141, 156, 174, 188, 202, 282, 303, 348, 377, 404, 564, 606, 611, 754, 1131, 1212, 1222, 1313, 1363, 1508, 1833, 2262, 2444, 2626, 2726, 2929, 3666, 3939, 4089, 4524, 4747, 5252, 5452, 5858, 7332, 7878, 8178, 8787, 9494, 11716, 14241, 15756, 16356, 17574, 17719, 18988, 28482, 35148, 35438, 38077, 53157, 56964, 61711, 70876, 76154, 106314, 114231, 123422, 137663, 152308, 185133, 212628, 228462, 246844, 275326, 370266, 412989, 456924, 550652, 740532, 825978, 1651956, 1789619, 3579238, 5368857, 7158476, 10737714, 21475428]

約数ペア:

[(1, 21475428), (2, 10737714), (3, 7158476), (4, 5368857), (6, 3579238), (12, 1789619), (13, 1651956), (26, 825978), (29, 740532), (39, 550652), (47, 456924), (52, 412989), (58, 370266), (78, 275326), (87, 246844), (94, 228462), (101, 212628), (116, 185133), (141, 152308), (156, 137663), (174, 123422), (188, 114231), (202, 106314), (282, 76154), (303, 70876), (348, 61711), (377, 56964), (404, 53157), (564, 38077), (606, 35438), (611, 35148), (754, 28482), (1131, 18988), (1212, 17719), (1222, 17574), (1313, 16356), (1363, 15756), (1508, 14241), (1833, 11716), (2262, 9494), (2444, 8787), (2626, 8178), (2726, 7878), (2929, 7332), (3666, 5858), (3939, 5452), (4089, 5252), (4524, 4747)]