21882965

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1$

素因数の和:126

約数の個数: 48

約数和(自身を含む): 31622400

約数和(自身を除く): 9739435

約数列:

[1, 5, 13, 19, 29, 47, 65, 95, 145, 169, 235, 247, 377, 551, 611, 845, 893, 1235, 1363, 1885, 2755, 3055, 3211, 4465, 4901, 6815, 7163, 7943, 11609, 16055, 17719, 24505, 25897, 35815, 39715, 58045, 88595, 93119, 129485, 150917, 230347, 336661, 465595, 754585, 1151735, 1683305, 4376593, 21882965]

約数ペア:

[(1, 21882965), (5, 4376593), (13, 1683305), (19, 1151735), (29, 754585), (47, 465595), (65, 336661), (95, 230347), (145, 150917), (169, 129485), (235, 93119), (247, 88595), (377, 58045), (551, 39715), (611, 35815), (845, 25897), (893, 24505), (1235, 17719), (1363, 16055), (1885, 11609), (2755, 7943), (3055, 7163), (3211, 6815), (4465, 4901)]