21512574

素因数分解:

$2^1\times 3^3\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{181}}^1$

素因数の和:294

約数の個数: 64

約数和(自身を含む): 50319360

約数和(自身を除く): 28806786

約数列:

[1, 2, 3, 6, 9, 18, 27, 31, 54, 62, 71, 93, 142, 181, 186, 213, 279, 362, 426, 543, 558, 639, 837, 1086, 1278, 1629, 1674, 1917, 2201, 3258, 3834, 4402, 4887, 5611, 6603, 9774, 11222, 12851, 13206, 16833, 19809, 25702, 33666, 38553, 39618, 50499, 59427, 77106, 100998, 115659, 118854, 151497, 231318, 302994, 346977, 398381, 693954, 796762, 1195143, 2390286, 3585429, 7170858, 10756287, 21512574]

約数ペア:

[(1, 21512574), (2, 10756287), (3, 7170858), (6, 3585429), (9, 2390286), (18, 1195143), (27, 796762), (31, 693954), (54, 398381), (62, 346977), (71, 302994), (93, 231318), (142, 151497), (181, 118854), (186, 115659), (213, 100998), (279, 77106), (362, 59427), (426, 50499), (543, 39618), (558, 38553), (639, 33666), (837, 25702), (1086, 19809), (1278, 16833), (1629, 13206), (1674, 12851), (1917, 11222), (2201, 9774), (3258, 6603), (3834, 5611), (4402, 4887)]