21978594

素因数分解:

$2^1\times 3^3\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{227}}^1$

素因数の和:412

約数の個数: 64

約数和(自身を含む): 53844480

約数和(自身を除く): 31865886

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 27, 33, 54, 66, 99, 163, 198, 227, 297, 326, 454, 489, 594, 681, 978, 1362, 1467, 1793, 2043, 2497, 2934, 3586, 4086, 4401, 4994, 5379, 6129, 7491, 8802, 10758, 12258, 14982, 16137, 22473, 32274, 37001, 44946, 48411, 67419, 74002, 96822, 111003, 134838, 222006, 333009, 407011, 666018, 814022, 999027, 1221033, 1998054, 2442066, 3663099, 7326198, 10989297, 21978594]

約数ペア:

[(1, 21978594), (2, 10989297), (3, 7326198), (6, 3663099), (9, 2442066), (11, 1998054), (18, 1221033), (22, 999027), (27, 814022), (33, 666018), (54, 407011), (66, 333009), (99, 222006), (163, 134838), (198, 111003), (227, 96822), (297, 74002), (326, 67419), (454, 48411), (489, 44946), (594, 37001), (681, 32274), (978, 22473), (1362, 16137), (1467, 14982), (1793, 12258), (2043, 10758), (2497, 8802), (2934, 7491), (3586, 6129), (4086, 5379), (4401, 4994)]