21315762

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1283}}^1$

素因数の和:1375

約数の個数: 48

約数和(自身を含む): 50476608

約数和(自身を除く): 29160846

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 71, 78, 117, 142, 213, 234, 426, 639, 923, 1278, 1283, 1846, 2566, 2769, 3849, 5538, 7698, 8307, 11547, 16614, 16679, 23094, 33358, 50037, 91093, 100074, 150111, 182186, 273279, 300222, 546558, 819837, 1184209, 1639674, 2368418, 3552627, 7105254, 10657881, 21315762]

約数ペア:

[(1, 21315762), (2, 10657881), (3, 7105254), (6, 3552627), (9, 2368418), (13, 1639674), (18, 1184209), (26, 819837), (39, 546558), (71, 300222), (78, 273279), (117, 182186), (142, 150111), (213, 100074), (234, 91093), (426, 50037), (639, 33358), (923, 23094), (1278, 16679), (1283, 16614), (1846, 11547), (2566, 8307), (2769, 7698), (3849, 5538)]