21256914237

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{229}}^1\times {\mathrm{569}}^1$

素因数の和:950

約数の個数: 64

約数和(自身を含む): 31715712000

約数和(自身を除く): 10458797763

約数列:

[1, 3, 13, 39, 47, 89, 141, 229, 267, 569, 611, 687, 1157, 1707, 1833, 2977, 3471, 4183, 7397, 8931, 10763, 12549, 20381, 22191, 26743, 32289, 50641, 54379, 61143, 80229, 130301, 139919, 151923, 163137, 264953, 347659, 390903, 419757, 658333, 794859, 957907, 1042977, 1693913, 1974999, 2380127, 2873721, 5081739, 6124147, 7140381, 11596789, 12452791, 18372441, 30941651, 34790367, 37358373, 79613911, 92824953, 150758257, 238841733, 452274771, 545049083, 1635147249, 7085638079, 21256914237]

約数ペア:

[(1, 21256914237), (3, 7085638079), (13, 1635147249), (39, 545049083), (47, 452274771), (89, 238841733), (141, 150758257), (229, 92824953), (267, 79613911), (569, 37358373), (611, 34790367), (687, 30941651), (1157, 18372441), (1707, 12452791), (1833, 11596789), (2977, 7140381), (3471, 6124147), (4183, 5081739), (7397, 2873721), (8931, 2380127), (10763, 1974999), (12549, 1693913), (20381, 1042977), (22191, 957907), (26743, 794859), (32289, 658333), (50641, 419757), (54379, 390903), (61143, 347659), (80229, 264953), (130301, 163137), (139919, 151923)]