19792575

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^2\times {\mathrm{727}}^1$

素因数の和:765

約数の個数: 54

約数和(自身を含む): 39020072

約数和(自身を除く): 19227497

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 45, 55, 75, 99, 121, 165, 225, 275, 363, 495, 605, 727, 825, 1089, 1815, 2181, 2475, 3025, 3635, 5445, 6543, 7997, 9075, 10905, 18175, 23991, 27225, 32715, 39985, 54525, 71973, 87967, 119955, 163575, 199925, 263901, 359865, 439835, 599775, 791703, 1319505, 1799325, 2199175, 3958515, 6597525, 19792575]

約数ペア:

[(1, 19792575), (3, 6597525), (5, 3958515), (9, 2199175), (11, 1799325), (15, 1319505), (25, 791703), (33, 599775), (45, 439835), (55, 359865), (75, 263901), (99, 199925), (121, 163575), (165, 119955), (225, 87967), (275, 71973), (363, 54525), (495, 39985), (605, 32715), (727, 27225), (825, 23991), (1089, 18175), (1815, 10905), (2181, 9075), (2475, 7997), (3025, 6543), (3635, 5445)]