21092435

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{307}}^1$

素因数の和:483

約数の個数: 32

約数和(自身を含む): 31460352

約数和(自身を除く): 10367917

約数列:

[1, 5, 7, 13, 35, 65, 91, 151, 307, 455, 755, 1057, 1535, 1963, 2149, 3991, 5285, 9815, 10745, 13741, 19955, 27937, 46357, 68705, 139685, 231785, 324499, 602641, 1622495, 3013205, 4218487, 21092435]

約数ペア:

[(1, 21092435), (5, 4218487), (7, 3013205), (13, 1622495), (35, 602641), (65, 324499), (91, 231785), (151, 139685), (307, 68705), (455, 46357), (755, 27937), (1057, 19955), (1535, 13741), (1963, 10745), (2149, 9815), (3991, 5285)]