21172928

素因数分解:

$2^6\times 7^1\times {\mathrm{167}}^1\times {\mathrm{283}}^1$

素因数の和:469

約数の個数: 56

約数和(自身を含む): 48475392

約数和(自身を除く): 27302464

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 167, 224, 283, 334, 448, 566, 668, 1132, 1169, 1336, 1981, 2264, 2338, 2672, 3962, 4528, 4676, 5344, 7924, 9056, 9352, 10688, 15848, 18112, 18704, 31696, 37408, 47261, 63392, 74816, 94522, 126784, 189044, 330827, 378088, 661654, 756176, 1323308, 1512352, 2646616, 3024704, 5293232, 10586464, 21172928]

約数ペア:

[(1, 21172928), (2, 10586464), (4, 5293232), (7, 3024704), (8, 2646616), (14, 1512352), (16, 1323308), (28, 756176), (32, 661654), (56, 378088), (64, 330827), (112, 189044), (167, 126784), (224, 94522), (283, 74816), (334, 63392), (448, 47261), (566, 37408), (668, 31696), (1132, 18704), (1169, 18112), (1336, 15848), (1981, 10688), (2264, 9352), (2338, 9056), (2672, 7924), (3962, 5344), (4528, 4676)]