21193970

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{37}}^1\times {\mathrm{167}}^1$

素因数の和:232

約数の個数: 64

約数和(自身を含む): 45964800

約数和(自身を除く): 24770830

約数列:

[1, 2, 5, 7, 10, 14, 35, 37, 49, 70, 74, 98, 167, 185, 245, 259, 334, 343, 370, 490, 518, 686, 835, 1169, 1295, 1670, 1715, 1813, 2338, 2590, 3430, 3626, 5845, 6179, 8183, 9065, 11690, 12358, 12691, 16366, 18130, 25382, 30895, 40915, 43253, 57281, 61790, 63455, 81830, 86506, 114562, 126910, 216265, 286405, 302771, 432530, 572810, 605542, 1513855, 2119397, 3027710, 4238794, 10596985, 21193970]

約数ペア:

[(1, 21193970), (2, 10596985), (5, 4238794), (7, 3027710), (10, 2119397), (14, 1513855), (35, 605542), (37, 572810), (49, 432530), (70, 302771), (74, 286405), (98, 216265), (167, 126910), (185, 114562), (245, 86506), (259, 81830), (334, 63455), (343, 61790), (370, 57281), (490, 43253), (518, 40915), (686, 30895), (835, 25382), (1169, 18130), (1295, 16366), (1670, 12691), (1715, 12358), (1813, 11690), (2338, 9065), (2590, 8183), (3430, 6179), (3626, 5845)]