21900944

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1483}}^1$

素因数の和:1575

約数の個数: 40

約数和(自身を含む): 46372032

約数和(自身を除く): 24471088

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 71, 104, 142, 208, 284, 568, 923, 1136, 1483, 1846, 2966, 3692, 5932, 7384, 11864, 14768, 19279, 23728, 38558, 77116, 105293, 154232, 210586, 308464, 421172, 842344, 1368809, 1684688, 2737618, 5475236, 10950472, 21900944]

約数ペア:

[(1, 21900944), (2, 10950472), (4, 5475236), (8, 2737618), (13, 1684688), (16, 1368809), (26, 842344), (52, 421172), (71, 308464), (104, 210586), (142, 154232), (208, 105293), (284, 77116), (568, 38558), (923, 23728), (1136, 19279), (1483, 14768), (1846, 11864), (2966, 7384), (3692, 5932)]