21561930

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6143}}^1$

素因数の和:6172

約数の個数: 64

約数和(自身を含む): 61931520

約数和(自身を除く): 40369590

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 27, 30, 39, 45, 54, 65, 78, 90, 117, 130, 135, 195, 234, 270, 351, 390, 585, 702, 1170, 1755, 3510, 6143, 12286, 18429, 30715, 36858, 55287, 61430, 79859, 92145, 110574, 159718, 165861, 184290, 239577, 276435, 331722, 399295, 479154, 552870, 718731, 798590, 829305, 1197885, 1437462, 1658610, 2156193, 2395770, 3593655, 4312386, 7187310, 10780965, 21561930]

約数ペア:

[(1, 21561930), (2, 10780965), (3, 7187310), (5, 4312386), (6, 3593655), (9, 2395770), (10, 2156193), (13, 1658610), (15, 1437462), (18, 1197885), (26, 829305), (27, 798590), (30, 718731), (39, 552870), (45, 479154), (54, 399295), (65, 331722), (78, 276435), (90, 239577), (117, 184290), (130, 165861), (135, 159718), (195, 110574), (234, 92145), (270, 79859), (351, 61430), (390, 55287), (585, 36858), (702, 30715), (1170, 18429), (1755, 12286), (3510, 6143)]