19620909

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1231}}^1$

素因数の和:1278

約数の個数: 48

約数和(自身を含む): 36900864

約数和(自身を除く): 17279955

約数列:

[1, 3, 7, 9, 11, 21, 23, 33, 63, 69, 77, 99, 161, 207, 231, 253, 483, 693, 759, 1231, 1449, 1771, 2277, 3693, 5313, 8617, 11079, 13541, 15939, 25851, 28313, 40623, 77553, 84939, 94787, 121869, 198191, 254817, 284361, 311443, 594573, 853083, 934329, 1783719, 2180101, 2802987, 6540303, 19620909]

約数ペア:

[(1, 19620909), (3, 6540303), (7, 2802987), (9, 2180101), (11, 1783719), (21, 934329), (23, 853083), (33, 594573), (63, 311443), (69, 284361), (77, 254817), (99, 198191), (161, 121869), (207, 94787), (231, 84939), (253, 77553), (483, 40623), (693, 28313), (759, 25851), (1231, 15939), (1449, 13541), (1771, 11079), (2277, 8617), (3693, 5313)]