21006570

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{883}}^1$

素因数の和:967

約数の個数: 64

約数和(自身を含む): 55246464

約数和(自身を除く): 34239894

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 61, 65, 78, 122, 130, 183, 195, 305, 366, 390, 610, 793, 883, 915, 1586, 1766, 1830, 2379, 2649, 3965, 4415, 4758, 5298, 7930, 8830, 11479, 11895, 13245, 22958, 23790, 26490, 34437, 53863, 57395, 68874, 107726, 114790, 161589, 172185, 269315, 323178, 344370, 538630, 700219, 807945, 1400438, 1615890, 2100657, 3501095, 4201314, 7002190, 10503285, 21006570]

約数ペア:

[(1, 21006570), (2, 10503285), (3, 7002190), (5, 4201314), (6, 3501095), (10, 2100657), (13, 1615890), (15, 1400438), (26, 807945), (30, 700219), (39, 538630), (61, 344370), (65, 323178), (78, 269315), (122, 172185), (130, 161589), (183, 114790), (195, 107726), (305, 68874), (366, 57395), (390, 53863), (610, 34437), (793, 26490), (883, 23790), (915, 22958), (1586, 13245), (1766, 11895), (1830, 11479), (2379, 8830), (2649, 7930), (3965, 5298), (4415, 4758)]