20912896

素因数分解:

$2^8\times {\mathrm{151}}^1\times {\mathrm{541}}^1$

素因数の和:708

約数の個数: 36

約数和(自身を含む): 42098224

約数和(自身を除く): 21185328

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 151, 256, 302, 541, 604, 1082, 1208, 2164, 2416, 4328, 4832, 8656, 9664, 17312, 19328, 34624, 38656, 69248, 81691, 138496, 163382, 326764, 653528, 1307056, 2614112, 5228224, 10456448, 20912896]

約数ペア:

[(1, 20912896), (2, 10456448), (4, 5228224), (8, 2614112), (16, 1307056), (32, 653528), (64, 326764), (128, 163382), (151, 138496), (256, 81691), (302, 69248), (541, 38656), (604, 34624), (1082, 19328), (1208, 17312), (2164, 9664), (2416, 8656), (4328, 4832)]