221489667

素因数分解:

$3^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{283}}^1$

素因数の和:441

約数の個数: 64

約数和(自身を含む): 389329920

約数和(自身を除く): 167840253

約数列:

[1, 3, 7, 9, 21, 27, 41, 63, 101, 123, 189, 283, 287, 303, 369, 707, 849, 861, 909, 1107, 1981, 2121, 2547, 2583, 2727, 4141, 5943, 6363, 7641, 7749, 11603, 12423, 17829, 19089, 28583, 28987, 34809, 37269, 53487, 81221, 85749, 86961, 104427, 111807, 200081, 243663, 257247, 260883, 313281, 600243, 730989, 771741, 782649, 1171903, 1800729, 2192967, 3515709, 5402187, 8203321, 10547127, 24609963, 31641381, 73829889, 221489667]

約数ペア:

[(1, 221489667), (3, 73829889), (7, 31641381), (9, 24609963), (21, 10547127), (27, 8203321), (41, 5402187), (63, 3515709), (101, 2192967), (123, 1800729), (189, 1171903), (283, 782649), (287, 771741), (303, 730989), (369, 600243), (707, 313281), (849, 260883), (861, 257247), (909, 243663), (1107, 200081), (1981, 111807), (2121, 104427), (2547, 86961), (2583, 85749), (2727, 81221), (4141, 53487), (5943, 37269), (6363, 34809), (7641, 28987), (7749, 28583), (11603, 19089), (12423, 17829)]