19741974

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1$

素因数の和:269

約数の個数: 64

約数和(自身を含む): 47056896

約数和(自身を除く): 27314922

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 47, 73, 94, 137, 141, 146, 219, 274, 282, 329, 411, 438, 511, 658, 822, 959, 987, 1022, 1533, 1918, 1974, 2877, 3066, 3431, 5754, 6439, 6862, 10001, 10293, 12878, 19317, 20002, 20586, 24017, 30003, 38634, 45073, 48034, 60006, 70007, 72051, 90146, 135219, 140014, 144102, 210021, 270438, 420042, 470047, 940094, 1410141, 2820282, 3290329, 6580658, 9870987, 19741974]

約数ペア:

[(1, 19741974), (2, 9870987), (3, 6580658), (6, 3290329), (7, 2820282), (14, 1410141), (21, 940094), (42, 470047), (47, 420042), (73, 270438), (94, 210021), (137, 144102), (141, 140014), (146, 135219), (219, 90146), (274, 72051), (282, 70007), (329, 60006), (411, 48034), (438, 45073), (511, 38634), (658, 30003), (822, 24017), (959, 20586), (987, 20002), (1022, 19317), (1533, 12878), (1918, 10293), (1974, 10001), (2877, 6862), (3066, 6439), (3431, 5754)]