21976668

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{2357}}^1$

素因数の和:2411

約数の個数: 72

約数和(自身を含む): 65231712

約数和(自身を除く): 43255044

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 37, 42, 63, 74, 84, 111, 126, 148, 222, 252, 259, 333, 444, 518, 666, 777, 1036, 1332, 1554, 2331, 2357, 3108, 4662, 4714, 7071, 9324, 9428, 14142, 16499, 21213, 28284, 32998, 42426, 49497, 65996, 84852, 87209, 98994, 148491, 174418, 197988, 261627, 296982, 348836, 523254, 593964, 610463, 784881, 1046508, 1220926, 1569762, 1831389, 2441852, 3139524, 3662778, 5494167, 7325556, 10988334, 21976668]

約数ペア:

[(1, 21976668), (2, 10988334), (3, 7325556), (4, 5494167), (6, 3662778), (7, 3139524), (9, 2441852), (12, 1831389), (14, 1569762), (18, 1220926), (21, 1046508), (28, 784881), (36, 610463), (37, 593964), (42, 523254), (63, 348836), (74, 296982), (84, 261627), (111, 197988), (126, 174418), (148, 148491), (222, 98994), (252, 87209), (259, 84852), (333, 65996), (444, 49497), (518, 42426), (666, 32998), (777, 28284), (1036, 21213), (1332, 16499), (1554, 14142), (2331, 9428), (2357, 9324), (3108, 7071), (4662, 4714)]