21306324

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{2239}}^1$

素因数の和:2320

約数の個数: 48

約数和(自身を含む): 54440960

約数和(自身を除く): 33134636

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 61, 78, 122, 156, 183, 244, 366, 732, 793, 1586, 2239, 2379, 3172, 4478, 4758, 6717, 8956, 9516, 13434, 26868, 29107, 58214, 87321, 116428, 136579, 174642, 273158, 349284, 409737, 546316, 819474, 1638948, 1775527, 3551054, 5326581, 7102108, 10653162, 21306324]

約数ペア:

[(1, 21306324), (2, 10653162), (3, 7102108), (4, 5326581), (6, 3551054), (12, 1775527), (13, 1638948), (26, 819474), (39, 546316), (52, 409737), (61, 349284), (78, 273158), (122, 174642), (156, 136579), (183, 116428), (244, 87321), (366, 58214), (732, 29107), (793, 26868), (1586, 13434), (2239, 9516), (2379, 8956), (3172, 6717), (4478, 4758)]