20919408

素因数分解:

$2^4\times 3^1\times {\mathrm{97}}^1\times {\mathrm{4493}}^1$

素因数の和:4601

約数の個数: 40

約数和(自身を含む): 54611088

約数和(自身を除く): 33691680

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 97, 194, 291, 388, 582, 776, 1164, 1552, 2328, 4493, 4656, 8986, 13479, 17972, 26958, 35944, 53916, 71888, 107832, 215664, 435821, 871642, 1307463, 1743284, 2614926, 3486568, 5229852, 6973136, 10459704, 20919408]

約数ペア:

[(1, 20919408), (2, 10459704), (3, 6973136), (4, 5229852), (6, 3486568), (8, 2614926), (12, 1743284), (16, 1307463), (24, 871642), (48, 435821), (97, 215664), (194, 107832), (291, 71888), (388, 53916), (582, 35944), (776, 26958), (1164, 17972), (1552, 13479), (2328, 8986), (4493, 4656)]