19751706

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{151}}^1$

素因数の和:228

約数の個数: 72

約数和(自身を含む): 47732256

約数和(自身を除く): 27980550

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 43, 78, 86, 117, 129, 151, 169, 234, 258, 302, 338, 387, 453, 507, 559, 774, 906, 1014, 1118, 1359, 1521, 1677, 1963, 2718, 3042, 3354, 3926, 5031, 5889, 6493, 7267, 10062, 11778, 12986, 14534, 17667, 19479, 21801, 25519, 35334, 38958, 43602, 51038, 58437, 65403, 76557, 84409, 116874, 130806, 153114, 168818, 229671, 253227, 459342, 506454, 759681, 1097317, 1519362, 2194634, 3291951, 6583902, 9875853, 19751706]

約数ペア:

[(1, 19751706), (2, 9875853), (3, 6583902), (6, 3291951), (9, 2194634), (13, 1519362), (18, 1097317), (26, 759681), (39, 506454), (43, 459342), (78, 253227), (86, 229671), (117, 168818), (129, 153114), (151, 130806), (169, 116874), (234, 84409), (258, 76557), (302, 65403), (338, 58437), (387, 51038), (453, 43602), (507, 38958), (559, 35334), (774, 25519), (906, 21801), (1014, 19479), (1118, 17667), (1359, 14534), (1521, 12986), (1677, 11778), (1963, 10062), (2718, 7267), (3042, 6493), (3354, 5889), (3926, 5031)]