21273735

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{383}}^1$

素因数の和:444

約数の個数: 48

約数和(自身を含む): 40771584

約数和(自身を除く): 19497849

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 69, 105, 115, 161, 345, 383, 483, 529, 805, 1149, 1587, 1915, 2415, 2645, 2681, 3703, 5745, 7935, 8043, 8809, 11109, 13405, 18515, 26427, 40215, 44045, 55545, 61663, 132135, 184989, 202607, 308315, 607821, 924945, 1013035, 1418249, 3039105, 4254747, 7091245, 21273735]

約数ペア:

[(1, 21273735), (3, 7091245), (5, 4254747), (7, 3039105), (15, 1418249), (21, 1013035), (23, 924945), (35, 607821), (69, 308315), (105, 202607), (115, 184989), (161, 132135), (345, 61663), (383, 55545), (483, 44045), (529, 40215), (805, 26427), (1149, 18515), (1587, 13405), (1915, 11109), (2415, 8809), (2645, 8043), (2681, 7935), (3703, 5745)]