21017388

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{1657}}^1$

素因数の和:1822

約数の個数: 48

約数和(自身を含む): 56451584

約数和(自身を除く): 35434196

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 151, 302, 453, 604, 906, 1057, 1657, 1812, 2114, 3171, 3314, 4228, 4971, 6342, 6628, 9942, 11599, 12684, 19884, 23198, 34797, 46396, 69594, 139188, 250207, 500414, 750621, 1000828, 1501242, 1751449, 3002484, 3502898, 5254347, 7005796, 10508694, 21017388]

約数ペア:

[(1, 21017388), (2, 10508694), (3, 7005796), (4, 5254347), (6, 3502898), (7, 3002484), (12, 1751449), (14, 1501242), (21, 1000828), (28, 750621), (42, 500414), (84, 250207), (151, 139188), (302, 69594), (453, 46396), (604, 34797), (906, 23198), (1057, 19884), (1657, 12684), (1812, 11599), (2114, 9942), (3171, 6628), (3314, 6342), (4228, 4971)]