18856341

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1$

素因数の和:183

約数の個数: 64

約数和(自身を含む): 34560000

約数和(自身を除く): 15703659

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 59, 63, 89, 133, 171, 177, 189, 267, 399, 413, 513, 531, 623, 801, 1121, 1197, 1239, 1593, 1691, 1869, 2403, 3363, 3591, 3717, 5073, 5251, 5607, 7847, 10089, 11151, 11837, 15219, 15753, 16821, 23541, 30267, 35511, 36757, 45657, 47259, 70623, 99769, 106533, 110271, 141777, 211869, 299307, 319599, 330813, 698383, 897921, 992439, 2095149, 2693763, 6285447, 18856341]

約数ペア:

[(1, 18856341), (3, 6285447), (7, 2693763), (9, 2095149), (19, 992439), (21, 897921), (27, 698383), (57, 330813), (59, 319599), (63, 299307), (89, 211869), (133, 141777), (171, 110271), (177, 106533), (189, 99769), (267, 70623), (399, 47259), (413, 45657), (513, 36757), (531, 35511), (623, 30267), (801, 23541), (1121, 16821), (1197, 15753), (1239, 15219), (1593, 11837), (1691, 11151), (1869, 10089), (2403, 7847), (3363, 5607), (3591, 5251), (3717, 5073)]