19813968

素因数分解:

$2^4\times 3^2\times {\mathrm{137597}}^1$

素因数の和:137611

約数の個数: 30

約数和(自身を含む): 55451994

約数和(自身を除く): 35638026

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 137597, 275194, 412791, 550388, 825582, 1100776, 1238373, 1651164, 2201552, 2476746, 3302328, 4953492, 6604656, 9906984, 19813968]

約数ペア:

[(1, 19813968), (2, 9906984), (3, 6604656), (4, 4953492), (6, 3302328), (8, 2476746), (9, 2201552), (12, 1651164), (16, 1238373), (18, 1100776), (24, 825582), (36, 550388), (48, 412791), (72, 275194), (144, 137597)]