18826395

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{199}}^1$

素因数の和:284

約数の個数: 64

約数和(自身を含む): 37324800

約数和(自身を除く): 18498405

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 51, 53, 85, 105, 119, 159, 199, 255, 265, 357, 371, 595, 597, 795, 901, 995, 1113, 1393, 1785, 1855, 2703, 2985, 3383, 4179, 4505, 5565, 6307, 6965, 10149, 10547, 13515, 16915, 18921, 20895, 23681, 31535, 31641, 50745, 52735, 71043, 73829, 94605, 118405, 158205, 179299, 221487, 355215, 369145, 537897, 896495, 1107435, 1255093, 2689485, 3765279, 6275465, 18826395]

約数ペア:

[(1, 18826395), (3, 6275465), (5, 3765279), (7, 2689485), (15, 1255093), (17, 1107435), (21, 896495), (35, 537897), (51, 369145), (53, 355215), (85, 221487), (105, 179299), (119, 158205), (159, 118405), (199, 94605), (255, 73829), (265, 71043), (357, 52735), (371, 50745), (595, 31641), (597, 31535), (795, 23681), (901, 20895), (995, 18921), (1113, 16915), (1393, 13515), (1785, 10547), (1855, 10149), (2703, 6965), (2985, 6307), (3383, 5565), (4179, 4505)]