21931758

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{131}}^2$

素因数の和:341

約数の個数: 36

約数和(自身を含む): 48558744

約数和(自身を除く): 26626986

約数列:

[1, 2, 3, 6, 9, 18, 71, 131, 142, 213, 262, 393, 426, 639, 786, 1179, 1278, 2358, 9301, 17161, 18602, 27903, 34322, 51483, 55806, 83709, 102966, 154449, 167418, 308898, 1218431, 2436862, 3655293, 7310586, 10965879, 21931758]

約数ペア:

[(1, 21931758), (2, 10965879), (3, 7310586), (6, 3655293), (9, 2436862), (18, 1218431), (71, 308898), (131, 167418), (142, 154449), (213, 102966), (262, 83709), (393, 55806), (426, 51483), (639, 34322), (786, 27903), (1179, 18602), (1278, 17161), (2358, 9301)]