21617790

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{11813}}^1$

素因数の和:11884

約数の個数: 32

約数和(自身を含む): 52737696

約数和(自身を除く): 31119906

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 61, 122, 183, 305, 366, 610, 915, 1830, 11813, 23626, 35439, 59065, 70878, 118130, 177195, 354390, 720593, 1441186, 2161779, 3602965, 4323558, 7205930, 10808895, 21617790]

約数ペア:

[(1, 21617790), (2, 10808895), (3, 7205930), (5, 4323558), (6, 3602965), (10, 2161779), (15, 1441186), (30, 720593), (61, 354390), (122, 177195), (183, 118130), (305, 70878), (366, 59065), (610, 35439), (915, 23626), (1830, 11813)]