21893880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{4243}}^1$

素因数の和:4300

約数の個数: 64

約数和(自身を含む): 67224960

約数和(自身を除く): 45331080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 60, 86, 120, 129, 172, 215, 258, 344, 430, 516, 645, 860, 1032, 1290, 1720, 2580, 4243, 5160, 8486, 12729, 16972, 21215, 25458, 33944, 42430, 50916, 63645, 84860, 101832, 127290, 169720, 182449, 254580, 364898, 509160, 547347, 729796, 912245, 1094694, 1459592, 1824490, 2189388, 2736735, 3648980, 4378776, 5473470, 7297960, 10946940, 21893880]

約数ペア:

[(1, 21893880), (2, 10946940), (3, 7297960), (4, 5473470), (5, 4378776), (6, 3648980), (8, 2736735), (10, 2189388), (12, 1824490), (15, 1459592), (20, 1094694), (24, 912245), (30, 729796), (40, 547347), (43, 509160), (60, 364898), (86, 254580), (120, 182449), (129, 169720), (172, 127290), (215, 101832), (258, 84860), (344, 63645), (430, 50916), (516, 42430), (645, 33944), (860, 25458), (1032, 21215), (1290, 16972), (1720, 12729), (2580, 8486), (4243, 5160)]