20666926

素因数分解:

$2^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{173}}^1$

素因数の和:265

約数の個数: 48

約数和(自身を含む): 38561184

約数和(自身を除く): 17894258

約数列:

[1, 2, 7, 14, 23, 46, 49, 53, 98, 106, 161, 173, 322, 346, 371, 742, 1127, 1211, 1219, 2254, 2422, 2438, 2597, 3979, 5194, 7958, 8477, 8533, 9169, 16954, 17066, 18338, 27853, 55706, 59731, 64183, 119462, 128366, 194971, 210887, 389942, 421774, 449281, 898562, 1476209, 2952418, 10333463, 20666926]

約数ペア:

[(1, 20666926), (2, 10333463), (7, 2952418), (14, 1476209), (23, 898562), (46, 449281), (49, 421774), (53, 389942), (98, 210887), (106, 194971), (161, 128366), (173, 119462), (322, 64183), (346, 59731), (371, 55706), (742, 27853), (1127, 18338), (1211, 17066), (1219, 16954), (2254, 9169), (2422, 8533), (2438, 8477), (2597, 7958), (3979, 5194)]