21790123201

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{91969}}^1$

素因数の和:92185

約数の個数: 32

約数和(自身を含む): 28924197120

約数和(自身を除く): 7134073919

約数列:

[1, 7, 11, 17, 77, 119, 181, 187, 1267, 1309, 1991, 3077, 13937, 21539, 33847, 91969, 236929, 643783, 1011659, 1563473, 7081613, 10944311, 16646389, 17198203, 116524723, 120387421, 183110279, 282988613, 1281771953, 1980920291, 3112874743, 21790123201]

約数ペア:

[(1, 21790123201), (7, 3112874743), (11, 1980920291), (17, 1281771953), (77, 282988613), (119, 183110279), (181, 120387421), (187, 116524723), (1267, 17198203), (1309, 16646389), (1991, 10944311), (3077, 7081613), (13937, 1563473), (21539, 1011659), (33847, 643783), (91969, 236929)]