21820974

素因数分解:

$2^1\times 3^1\times 7^3\times {\mathrm{23}}^1\times {\mathrm{461}}^1$

素因数の和:510

約数の個数: 64

約数和(自身を含む): 53222400

約数和(自身を除く): 31401426

約数列:

[1, 2, 3, 6, 7, 14, 21, 23, 42, 46, 49, 69, 98, 138, 147, 161, 294, 322, 343, 461, 483, 686, 922, 966, 1029, 1127, 1383, 2058, 2254, 2766, 3227, 3381, 6454, 6762, 7889, 9681, 10603, 15778, 19362, 21206, 22589, 23667, 31809, 45178, 47334, 63618, 67767, 74221, 135534, 148442, 158123, 222663, 316246, 445326, 474369, 519547, 948738, 1039094, 1558641, 3117282, 3636829, 7273658, 10910487, 21820974]

約数ペア:

[(1, 21820974), (2, 10910487), (3, 7273658), (6, 3636829), (7, 3117282), (14, 1558641), (21, 1039094), (23, 948738), (42, 519547), (46, 474369), (49, 445326), (69, 316246), (98, 222663), (138, 158123), (147, 148442), (161, 135534), (294, 74221), (322, 67767), (343, 63618), (461, 47334), (483, 45178), (686, 31809), (922, 23667), (966, 22589), (1029, 21206), (1127, 19362), (1383, 15778), (2058, 10603), (2254, 9681), (2766, 7889), (3227, 6762), (3381, 6454)]