21110895

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{523}}^1$

素因数の和:573

約数の個数: 64

約数和(自身を含む): 42255360

約数和(自身を除く): 21144465

約数列:

[1, 3, 5, 9, 13, 15, 23, 27, 39, 45, 65, 69, 115, 117, 135, 195, 207, 299, 345, 351, 523, 585, 621, 897, 1035, 1495, 1569, 1755, 2615, 2691, 3105, 4485, 4707, 6799, 7845, 8073, 12029, 13455, 14121, 20397, 23535, 33995, 36087, 40365, 60145, 61191, 70605, 101985, 108261, 156377, 180435, 183573, 305955, 324783, 469131, 541305, 781885, 917865, 1407393, 1623915, 2345655, 4222179, 7036965, 21110895]

約数ペア:

[(1, 21110895), (3, 7036965), (5, 4222179), (9, 2345655), (13, 1623915), (15, 1407393), (23, 917865), (27, 781885), (39, 541305), (45, 469131), (65, 324783), (69, 305955), (115, 183573), (117, 180435), (135, 156377), (195, 108261), (207, 101985), (299, 70605), (345, 61191), (351, 60145), (523, 40365), (585, 36087), (621, 33995), (897, 23535), (1035, 20397), (1495, 14121), (1569, 13455), (1755, 12029), (2615, 8073), (2691, 7845), (3105, 6799), (4485, 4707)]