21500156665

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{136739}}^1$

素因数の和:136857

約数の個数: 32

約数和(自身を含む): 28945123200

約数和(自身を除く): 7444966535

約数列:

[1, 5, 13, 41, 59, 65, 205, 295, 533, 767, 2419, 2665, 3835, 12095, 31447, 136739, 157235, 683695, 1777607, 5606299, 8067601, 8888035, 28031495, 40338005, 72881887, 104878813, 330771641, 364409435, 524394065, 1653858205, 4300031333, 21500156665]

約数ペア:

[(1, 21500156665), (5, 4300031333), (13, 1653858205), (41, 524394065), (59, 364409435), (65, 330771641), (205, 104878813), (295, 72881887), (533, 40338005), (767, 28031495), (2419, 8888035), (2665, 8067601), (3835, 5606299), (12095, 1777607), (31447, 683695), (136739, 157235)]