21309180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{6701}}^1$

素因数の和:6766

約数の個数: 48

約数和(自身を含む): 60800544

約数和(自身を除く): 39491364

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 53, 60, 106, 159, 212, 265, 318, 530, 636, 795, 1060, 1590, 3180, 6701, 13402, 20103, 26804, 33505, 40206, 67010, 80412, 100515, 134020, 201030, 355153, 402060, 710306, 1065459, 1420612, 1775765, 2130918, 3551530, 4261836, 5327295, 7103060, 10654590, 21309180]

約数ペア:

[(1, 21309180), (2, 10654590), (3, 7103060), (4, 5327295), (5, 4261836), (6, 3551530), (10, 2130918), (12, 1775765), (15, 1420612), (20, 1065459), (30, 710306), (53, 402060), (60, 355153), (106, 201030), (159, 134020), (212, 100515), (265, 80412), (318, 67010), (530, 40206), (636, 33505), (795, 26804), (1060, 20103), (1590, 13402), (3180, 6701)]