18578781

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1291}}^1$

素因数の和:1354

約数の個数: 32

約数和(自身を含む): 30387840

約数和(自身を除く): 11809059

約数列:

[1, 3, 9, 13, 27, 39, 41, 117, 123, 351, 369, 533, 1107, 1291, 1599, 3873, 4797, 11619, 14391, 16783, 34857, 50349, 52931, 151047, 158793, 453141, 476379, 688103, 1429137, 2064309, 6192927, 18578781]

約数ペア:

[(1, 18578781), (3, 6192927), (9, 2064309), (13, 1429137), (27, 688103), (39, 476379), (41, 453141), (117, 158793), (123, 151047), (351, 52931), (369, 50349), (533, 34857), (1107, 16783), (1291, 14391), (1599, 11619), (3873, 4797)]