20161519371

素因数分解:

$3^2\times 7^2\times {\mathrm{61}}^1\times {\mathrm{749471}}^1$

素因数の和:749552

約数の個数: 36

約数和(自身を含む): 34432242624

約数和(自身を除く): 14270723253

約数列:

[1, 3, 7, 9, 21, 49, 61, 63, 147, 183, 427, 441, 549, 1281, 2989, 3843, 8967, 26901, 749471, 2248413, 5246297, 6745239, 15738891, 36724079, 45717731, 47216673, 110172237, 137153193, 320024117, 330516711, 411459579, 960072351, 2240168819, 2880217053, 6720506457, 20161519371]

約数ペア:

[(1, 20161519371), (3, 6720506457), (7, 2880217053), (9, 2240168819), (21, 960072351), (49, 411459579), (61, 330516711), (63, 320024117), (147, 137153193), (183, 110172237), (427, 47216673), (441, 45717731), (549, 36724079), (1281, 15738891), (2989, 6745239), (3843, 5246297), (8967, 2248413), (26901, 749471)]