211306356

素因数分解:

$2^2\times 3^2\times {\mathrm{79}}^1\times {\mathrm{191}}^1\times {\mathrm{389}}^1$

素因数の和:669

約数の個数: 72

約数和(自身を含む): 545126400

約数和(自身を除く): 333820044

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 79, 158, 191, 237, 316, 382, 389, 474, 573, 711, 764, 778, 948, 1146, 1167, 1422, 1556, 1719, 2292, 2334, 2844, 3438, 3501, 4668, 6876, 7002, 14004, 15089, 30178, 30731, 45267, 60356, 61462, 74299, 90534, 92193, 122924, 135801, 148598, 181068, 184386, 222897, 271602, 276579, 297196, 368772, 445794, 543204, 553158, 668691, 891588, 1106316, 1337382, 2674764, 5869621, 11739242, 17608863, 23478484, 35217726, 52826589, 70435452, 105653178, 211306356]

約数ペア:

[(1, 211306356), (2, 105653178), (3, 70435452), (4, 52826589), (6, 35217726), (9, 23478484), (12, 17608863), (18, 11739242), (36, 5869621), (79, 2674764), (158, 1337382), (191, 1106316), (237, 891588), (316, 668691), (382, 553158), (389, 543204), (474, 445794), (573, 368772), (711, 297196), (764, 276579), (778, 271602), (948, 222897), (1146, 184386), (1167, 181068), (1422, 148598), (1556, 135801), (1719, 122924), (2292, 92193), (2334, 90534), (2844, 74299), (3438, 61462), (3501, 60356), (4668, 45267), (6876, 30731), (7002, 30178), (14004, 15089)]