21161595

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{419}}^1$

素因数の和:484

約数の個数: 64

約数和(自身を含む): 42900480

約数和(自身を除く): 21738885

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 37, 39, 65, 91, 105, 111, 185, 195, 259, 273, 419, 455, 481, 555, 777, 1257, 1295, 1365, 1443, 2095, 2405, 2933, 3367, 3885, 5447, 6285, 7215, 8799, 10101, 14665, 15503, 16341, 16835, 27235, 38129, 43995, 46509, 50505, 77515, 81705, 108521, 114387, 190645, 201539, 232545, 325563, 542605, 571935, 604617, 1007695, 1410773, 1627815, 3023085, 4232319, 7053865, 21161595]

約数ペア:

[(1, 21161595), (3, 7053865), (5, 4232319), (7, 3023085), (13, 1627815), (15, 1410773), (21, 1007695), (35, 604617), (37, 571935), (39, 542605), (65, 325563), (91, 232545), (105, 201539), (111, 190645), (185, 114387), (195, 108521), (259, 81705), (273, 77515), (419, 50505), (455, 46509), (481, 43995), (555, 38129), (777, 27235), (1257, 16835), (1295, 16341), (1365, 15503), (1443, 14665), (2095, 10101), (2405, 8799), (2933, 7215), (3367, 6285), (3885, 5447)]