21119384

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{18461}}^1$

素因数の和:18491

約数の個数: 32

約数和(自身を含む): 46524240

約数和(自身を除く): 25404856

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 143, 286, 572, 1144, 18461, 36922, 73844, 147688, 203071, 239993, 406142, 479986, 812284, 959972, 1624568, 1919944, 2639923, 5279846, 10559692, 21119384]

約数ペア:

[(1, 21119384), (2, 10559692), (4, 5279846), (8, 2639923), (11, 1919944), (13, 1624568), (22, 959972), (26, 812284), (44, 479986), (52, 406142), (88, 239993), (104, 203071), (143, 147688), (286, 73844), (572, 36922), (1144, 18461)]