21959067

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{443}}^1$

素因数の和:531

約数の個数: 32

約数和(自身を含む): 33417216

約数和(自身を除く): 11458149

約数列:

[1, 3, 13, 31, 39, 41, 93, 123, 403, 443, 533, 1209, 1271, 1329, 1599, 3813, 5759, 13733, 16523, 17277, 18163, 41199, 49569, 54489, 178529, 236119, 535587, 563053, 708357, 1689159, 7319689, 21959067]

約数ペア:

[(1, 21959067), (3, 7319689), (13, 1689159), (31, 708357), (39, 563053), (41, 535587), (93, 236119), (123, 178529), (403, 54489), (443, 49569), (533, 41199), (1209, 18163), (1271, 17277), (1329, 16523), (1599, 13733), (3813, 5759)]