19968156928

素因数分解:

$2^8\times {\mathrm{23}}^1\times {\mathrm{3391331}}^1$

素因数の和:3391370

約数の個数: 36

約数和(自身を含む): 41591295648

約数和(自身を除く): 21623138720

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 64, 92, 128, 184, 256, 368, 736, 1472, 2944, 5888, 3391331, 6782662, 13565324, 27130648, 54261296, 78000613, 108522592, 156001226, 217045184, 312002452, 434090368, 624004904, 868180736, 1248009808, 2496019616, 4992039232, 9984078464, 19968156928]

約数ペア:

[(1, 19968156928), (2, 9984078464), (4, 4992039232), (8, 2496019616), (16, 1248009808), (23, 868180736), (32, 624004904), (46, 434090368), (64, 312002452), (92, 217045184), (128, 156001226), (184, 108522592), (256, 78000613), (368, 54261296), (736, 27130648), (1472, 13565324), (2944, 6782662), (5888, 3391331)]