21717380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{853}}^1$

素因数の和:948

約数の個数: 48

約数和(自身を含む): 48780480

約数和(自身を除く): 27063100

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 67, 76, 95, 134, 190, 268, 335, 380, 670, 853, 1273, 1340, 1706, 2546, 3412, 4265, 5092, 6365, 8530, 12730, 16207, 17060, 25460, 32414, 57151, 64828, 81035, 114302, 162070, 228604, 285755, 324140, 571510, 1085869, 1143020, 2171738, 4343476, 5429345, 10858690, 21717380]

約数ペア:

[(1, 21717380), (2, 10858690), (4, 5429345), (5, 4343476), (10, 2171738), (19, 1143020), (20, 1085869), (38, 571510), (67, 324140), (76, 285755), (95, 228604), (134, 162070), (190, 114302), (268, 81035), (335, 64828), (380, 57151), (670, 32414), (853, 25460), (1273, 17060), (1340, 16207), (1706, 12730), (2546, 8530), (3412, 6365), (4265, 5092)]