18621568

素因数分解:

$2^7\times 7^2\times {\mathrm{2969}}^1$

素因数の和:2997

約数の個数: 48

約数和(自身を含む): 43168950

約数和(自身を除く): 24547382

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 128, 196, 224, 392, 448, 784, 896, 1568, 2969, 3136, 5938, 6272, 11876, 20783, 23752, 41566, 47504, 83132, 95008, 145481, 166264, 190016, 290962, 332528, 380032, 581924, 665056, 1163848, 1330112, 2327696, 2660224, 4655392, 9310784, 18621568]

約数ペア:

[(1, 18621568), (2, 9310784), (4, 4655392), (7, 2660224), (8, 2327696), (14, 1330112), (16, 1163848), (28, 665056), (32, 581924), (49, 380032), (56, 332528), (64, 290962), (98, 190016), (112, 166264), (128, 145481), (196, 95008), (224, 83132), (392, 47504), (448, 41566), (784, 23752), (896, 20783), (1568, 11876), (2969, 6272), (3136, 5938)]