21130850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1$

素因数の和:132

約数の個数: 96

約数和(自身を含む): 46872000

約数和(自身を除く): 25741150

約数列:

[1, 2, 5, 10, 13, 19, 25, 26, 29, 38, 50, 58, 59, 65, 95, 118, 130, 145, 190, 247, 290, 295, 325, 377, 475, 494, 551, 590, 650, 725, 754, 767, 950, 1102, 1121, 1235, 1450, 1475, 1534, 1711, 1885, 2242, 2470, 2755, 2950, 3422, 3770, 3835, 5510, 5605, 6175, 7163, 7670, 8555, 9425, 11210, 12350, 13775, 14326, 14573, 17110, 18850, 19175, 22243, 27550, 28025, 29146, 32509, 35815, 38350, 42775, 44486, 56050, 65018, 71630, 72865, 85550, 111215, 145730, 162545, 179075, 222430, 325090, 358150, 364325, 422617, 556075, 728650, 812725, 845234, 1112150, 1625450, 2113085, 4226170, 10565425, 21130850]

約数ペア:

[(1, 21130850), (2, 10565425), (5, 4226170), (10, 2113085), (13, 1625450), (19, 1112150), (25, 845234), (26, 812725), (29, 728650), (38, 556075), (50, 422617), (58, 364325), (59, 358150), (65, 325090), (95, 222430), (118, 179075), (130, 162545), (145, 145730), (190, 111215), (247, 85550), (290, 72865), (295, 71630), (325, 65018), (377, 56050), (475, 44486), (494, 42775), (551, 38350), (590, 35815), (650, 32509), (725, 29146), (754, 28025), (767, 27550), (950, 22243), (1102, 19175), (1121, 18850), (1235, 17110), (1450, 14573), (1475, 14326), (1534, 13775), (1711, 12350), (1885, 11210), (2242, 9425), (2470, 8555), (2755, 7670), (2950, 7163), (3422, 6175), (3770, 5605), (3835, 5510)]