21167235

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{1303}}^1$

素因数の和:1352

約数の個数: 36

約数和(自身を含む): 38752272

約数和(自身を除く): 17585037

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 361, 855, 1083, 1303, 1805, 3249, 3909, 5415, 6515, 11727, 16245, 19545, 24757, 58635, 74271, 123785, 222813, 371355, 470383, 1114065, 1411149, 2351915, 4233447, 7055745, 21167235]

約数ペア:

[(1, 21167235), (3, 7055745), (5, 4233447), (9, 2351915), (15, 1411149), (19, 1114065), (45, 470383), (57, 371355), (95, 222813), (171, 123785), (285, 74271), (361, 58635), (855, 24757), (1083, 19545), (1303, 16245), (1805, 11727), (3249, 6515), (3909, 5415)]