21147580

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1483}}^1$

素因数の和:1546

約数の個数: 48

約数和(自身を含む): 47867904

約数和(自身を除く): 26720324

約数列:

[1, 2, 4, 5, 10, 20, 23, 31, 46, 62, 92, 115, 124, 155, 230, 310, 460, 620, 713, 1426, 1483, 2852, 2966, 3565, 5932, 7130, 7415, 14260, 14830, 29660, 34109, 45973, 68218, 91946, 136436, 170545, 183892, 229865, 341090, 459730, 682180, 919460, 1057379, 2114758, 4229516, 5286895, 10573790, 21147580]

約数ペア:

[(1, 21147580), (2, 10573790), (4, 5286895), (5, 4229516), (10, 2114758), (20, 1057379), (23, 919460), (31, 682180), (46, 459730), (62, 341090), (92, 229865), (115, 183892), (124, 170545), (155, 136436), (230, 91946), (310, 68218), (460, 45973), (620, 34109), (713, 29660), (1426, 14830), (1483, 14260), (2852, 7415), (2966, 7130), (3565, 5932)]