20123694717

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{431}}^1\times {\mathrm{60091}}^1$

素因数の和:60569

約数の個数: 32

約数和(自身を含む): 31567048704

約数和(自身を除く): 11443353987

約数列:

[1, 3, 7, 21, 37, 111, 259, 431, 777, 1293, 3017, 9051, 15947, 47841, 60091, 111629, 180273, 334887, 420637, 1261911, 2223367, 6670101, 15563569, 25899221, 46690707, 77697663, 181294547, 543883641, 958271177, 2874813531, 6707898239, 20123694717]

約数ペア:

[(1, 20123694717), (3, 6707898239), (7, 2874813531), (21, 958271177), (37, 543883641), (111, 181294547), (259, 77697663), (431, 46690707), (777, 25899221), (1293, 15563569), (3017, 6670101), (9051, 2223367), (15947, 1261911), (47841, 420637), (60091, 334887), (111629, 180273)]