20865117

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{3323}}^1$

素因数の和:3369

約数の個数: 32

約数和(自身を含む): 35739648

約数和(自身を除く): 14874531

約数列:

[1, 3, 7, 13, 21, 23, 39, 69, 91, 161, 273, 299, 483, 897, 2093, 3323, 6279, 9969, 23261, 43199, 69783, 76429, 129597, 229287, 302393, 535003, 907179, 993577, 1605009, 2980731, 6955039, 20865117]

約数ペア:

[(1, 20865117), (3, 6955039), (7, 2980731), (13, 1605009), (21, 993577), (23, 907179), (39, 535003), (69, 302393), (91, 229287), (161, 129597), (273, 76429), (299, 69783), (483, 43199), (897, 23261), (2093, 9969), (3323, 6279)]