21919664

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{6199}}^1$

素因数の和:6237

約数の個数: 40

約数和(自身を含む): 48434400

約数和(自身を除く): 26514736

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 68, 104, 136, 208, 221, 272, 442, 884, 1768, 3536, 6199, 12398, 24796, 49592, 80587, 99184, 105383, 161174, 210766, 322348, 421532, 644696, 843064, 1289392, 1369979, 1686128, 2739958, 5479916, 10959832, 21919664]

約数ペア:

[(1, 21919664), (2, 10959832), (4, 5479916), (8, 2739958), (13, 1686128), (16, 1369979), (17, 1289392), (26, 843064), (34, 644696), (52, 421532), (68, 322348), (104, 210766), (136, 161174), (208, 105383), (221, 99184), (272, 80587), (442, 49592), (884, 24796), (1768, 12398), (3536, 6199)]