20776329

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1021}}^1$

素因数の和:1070

約数の個数: 48

約数和(自身を含む): 38263680

約数和(自身を除く): 17487351

約数列:

[1, 3, 7, 9, 17, 19, 21, 51, 57, 63, 119, 133, 153, 171, 323, 357, 399, 969, 1021, 1071, 1197, 2261, 2907, 3063, 6783, 7147, 9189, 17357, 19399, 20349, 21441, 52071, 58197, 64323, 121499, 135793, 156213, 174591, 329783, 364497, 407379, 989349, 1093491, 1222137, 2308481, 2968047, 6925443, 20776329]

約数ペア:

[(1, 20776329), (3, 6925443), (7, 2968047), (9, 2308481), (17, 1222137), (19, 1093491), (21, 989349), (51, 407379), (57, 364497), (63, 329783), (119, 174591), (133, 156213), (153, 135793), (171, 121499), (323, 64323), (357, 58197), (399, 52071), (969, 21441), (1021, 20349), (1071, 19399), (1197, 17357), (2261, 9189), (2907, 7147), (3063, 6783)]