21425300

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{16481}}^1$

素因数の和:16508

約数の個数: 36

約数和(自身を含む): 50072316

約数和(自身を除く): 28647016

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 16481, 32962, 65924, 82405, 164810, 214253, 329620, 412025, 428506, 824050, 857012, 1071265, 1648100, 2142530, 4285060, 5356325, 10712650, 21425300]

約数ペア:

[(1, 21425300), (2, 10712650), (4, 5356325), (5, 4285060), (10, 2142530), (13, 1648100), (20, 1071265), (25, 857012), (26, 824050), (50, 428506), (52, 412025), (65, 329620), (100, 214253), (130, 164810), (260, 82405), (325, 65924), (650, 32962), (1300, 16481)]