221970784

素因数分解:

$2^5\times 7^2\times {\mathrm{53}}^1\times {\mathrm{2671}}^1$

素因数の和:2748

約数の個数: 72

約数和(自身を含む): 518138208

約数和(自身を除く): 296167424

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 53, 56, 98, 106, 112, 196, 212, 224, 371, 392, 424, 742, 784, 848, 1484, 1568, 1696, 2597, 2671, 2968, 5194, 5342, 5936, 10388, 10684, 11872, 18697, 20776, 21368, 37394, 41552, 42736, 74788, 83104, 85472, 130879, 141563, 149576, 261758, 283126, 299152, 523516, 566252, 598304, 990941, 1047032, 1132504, 1981882, 2094064, 2265008, 3963764, 4188128, 4530016, 6936587, 7927528, 13873174, 15855056, 27746348, 31710112, 55492696, 110985392, 221970784]

約数ペア:

[(1, 221970784), (2, 110985392), (4, 55492696), (7, 31710112), (8, 27746348), (14, 15855056), (16, 13873174), (28, 7927528), (32, 6936587), (49, 4530016), (53, 4188128), (56, 3963764), (98, 2265008), (106, 2094064), (112, 1981882), (196, 1132504), (212, 1047032), (224, 990941), (371, 598304), (392, 566252), (424, 523516), (742, 299152), (784, 283126), (848, 261758), (1484, 149576), (1568, 141563), (1696, 130879), (2597, 85472), (2671, 83104), (2968, 74788), (5194, 42736), (5342, 41552), (5936, 37394), (10388, 21368), (10684, 20776), (11872, 18697)]