21939960

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{26119}}^1$

素因数の和:26140

約数の個数: 64

約数和(自身を含む): 75225600

約数和(自身を除く): 53285640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 26119, 52238, 78357, 104476, 130595, 156714, 182833, 208952, 261190, 313428, 365666, 391785, 522380, 548499, 626856, 731332, 783570, 914165, 1044760, 1096998, 1462664, 1567140, 1828330, 2193996, 2742495, 3134280, 3656660, 4387992, 5484990, 7313320, 10969980, 21939960]

約数ペア:

[(1, 21939960), (2, 10969980), (3, 7313320), (4, 5484990), (5, 4387992), (6, 3656660), (7, 3134280), (8, 2742495), (10, 2193996), (12, 1828330), (14, 1567140), (15, 1462664), (20, 1096998), (21, 1044760), (24, 914165), (28, 783570), (30, 731332), (35, 626856), (40, 548499), (42, 522380), (56, 391785), (60, 365666), (70, 313428), (84, 261190), (105, 208952), (120, 182833), (140, 156714), (168, 130595), (210, 104476), (280, 78357), (420, 52238), (840, 26119)]