21558537

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2393}}^1$

素因数の和:2430

約数の個数: 48

約数和(自身を含む): 41827968

約数和(自身を除く): 20269431

約数列:

[1, 3, 7, 9, 11, 13, 21, 33, 39, 63, 77, 91, 99, 117, 143, 231, 273, 429, 693, 819, 1001, 1287, 2393, 3003, 7179, 9009, 16751, 21537, 26323, 31109, 50253, 78969, 93327, 150759, 184261, 217763, 236907, 279981, 342199, 552783, 653289, 1026597, 1658349, 1959867, 2395393, 3079791, 7186179, 21558537]

約数ペア:

[(1, 21558537), (3, 7186179), (7, 3079791), (9, 2395393), (11, 1959867), (13, 1658349), (21, 1026597), (33, 653289), (39, 552783), (63, 342199), (77, 279981), (91, 236907), (99, 217763), (117, 184261), (143, 150759), (231, 93327), (273, 78969), (429, 50253), (693, 31109), (819, 26323), (1001, 21537), (1287, 16751), (2393, 9009), (3003, 7179)]