21842625

素因数分解:

$3^1\times 5^3\times 7^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1$

素因数の和:235

約数の個数: 64

約数和(自身を含む): 42591744

約数和(自身を除く): 20749119

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 53, 75, 105, 125, 157, 159, 175, 265, 371, 375, 471, 525, 785, 795, 875, 1099, 1113, 1325, 1855, 2355, 2625, 3297, 3925, 3975, 5495, 5565, 6625, 8321, 9275, 11775, 16485, 19625, 19875, 24963, 27475, 27825, 41605, 46375, 58247, 58875, 82425, 124815, 137375, 139125, 174741, 208025, 291235, 412125, 624075, 873705, 1040125, 1456175, 3120375, 4368525, 7280875, 21842625]

約数ペア:

[(1, 21842625), (3, 7280875), (5, 4368525), (7, 3120375), (15, 1456175), (21, 1040125), (25, 873705), (35, 624075), (53, 412125), (75, 291235), (105, 208025), (125, 174741), (157, 139125), (159, 137375), (175, 124815), (265, 82425), (371, 58875), (375, 58247), (471, 46375), (525, 41605), (785, 27825), (795, 27475), (875, 24963), (1099, 19875), (1113, 19625), (1325, 16485), (1855, 11775), (2355, 9275), (2625, 8321), (3297, 6625), (3925, 5565), (3975, 5495)]