21745568

素因数分解:

$2^5\times {\mathrm{13}}^2\times {\mathrm{4021}}^1$

素因数の和:4057

約数の個数: 36

約数和(自身を含む): 46369638

約数和(自身を除く): 24624070

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 169, 208, 338, 416, 676, 1352, 2704, 4021, 5408, 8042, 16084, 32168, 52273, 64336, 104546, 128672, 209092, 418184, 679549, 836368, 1359098, 1672736, 2718196, 5436392, 10872784, 21745568]

約数ペア:

[(1, 21745568), (2, 10872784), (4, 5436392), (8, 2718196), (13, 1672736), (16, 1359098), (26, 836368), (32, 679549), (52, 418184), (104, 209092), (169, 128672), (208, 104546), (338, 64336), (416, 52273), (676, 32168), (1352, 16084), (2704, 8042), (4021, 5408)]