21316260

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{50753}}^1$

素因数の和:50772

約数の個数: 48

約数和(自身を含む): 68213376

約数和(自身を除く): 46897116

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 50753, 101506, 152259, 203012, 253765, 304518, 355271, 507530, 609036, 710542, 761295, 1015060, 1065813, 1421084, 1522590, 1776355, 2131626, 3045180, 3552710, 4263252, 5329065, 7105420, 10658130, 21316260]

約数ペア:

[(1, 21316260), (2, 10658130), (3, 7105420), (4, 5329065), (5, 4263252), (6, 3552710), (7, 3045180), (10, 2131626), (12, 1776355), (14, 1522590), (15, 1421084), (20, 1065813), (21, 1015060), (28, 761295), (30, 710542), (35, 609036), (42, 507530), (60, 355271), (70, 304518), (84, 253765), (105, 203012), (140, 152259), (210, 101506), (420, 50753)]