21438810

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{271}}^1\times {\mathrm{293}}^1$

素因数の和:580

約数の個数: 64

約数和(自身を含む): 57576960

約数和(自身を除く): 36138150

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 270, 271, 293, 542, 586, 813, 879, 1355, 1465, 1626, 1758, 2439, 2637, 2710, 2930, 4065, 4395, 4878, 5274, 7317, 7911, 8130, 8790, 12195, 13185, 14634, 15822, 24390, 26370, 36585, 39555, 73170, 79110, 79403, 158806, 238209, 397015, 476418, 714627, 794030, 1191045, 1429254, 2143881, 2382090, 3573135, 4287762, 7146270, 10719405, 21438810]

約数ペア:

[(1, 21438810), (2, 10719405), (3, 7146270), (5, 4287762), (6, 3573135), (9, 2382090), (10, 2143881), (15, 1429254), (18, 1191045), (27, 794030), (30, 714627), (45, 476418), (54, 397015), (90, 238209), (135, 158806), (270, 79403), (271, 79110), (293, 73170), (542, 39555), (586, 36585), (813, 26370), (879, 24390), (1355, 15822), (1465, 14634), (1626, 13185), (1758, 12195), (2439, 8790), (2637, 8130), (2710, 7911), (2930, 7317), (4065, 5274), (4395, 4878)]