21123324

素因数分解:

$2^2\times 3^2\times {\mathrm{61}}^1\times {\mathrm{9619}}^1$

素因数の和:9690

約数の個数: 36

約数和(自身を含む): 54276040

約数和(自身を除く): 33152716

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 61, 122, 183, 244, 366, 549, 732, 1098, 2196, 9619, 19238, 28857, 38476, 57714, 86571, 115428, 173142, 346284, 586759, 1173518, 1760277, 2347036, 3520554, 5280831, 7041108, 10561662, 21123324]

約数ペア:

[(1, 21123324), (2, 10561662), (3, 7041108), (4, 5280831), (6, 3520554), (9, 2347036), (12, 1760277), (18, 1173518), (36, 586759), (61, 346284), (122, 173142), (183, 115428), (244, 86571), (366, 57714), (549, 38476), (732, 28857), (1098, 19238), (2196, 9619)]