21901814

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{373}}^1$

素因数の和:560

約数の個数: 32

約数和(自身を含む): 38291616

約数和(自身を除く): 16389802

約数列:

[1, 2, 11, 17, 22, 34, 157, 187, 314, 373, 374, 746, 1727, 2669, 3454, 4103, 5338, 6341, 8206, 12682, 29359, 58561, 58718, 69751, 117122, 139502, 644171, 995537, 1288342, 1991074, 10950907, 21901814]

約数ペア:

[(1, 21901814), (2, 10950907), (11, 1991074), (17, 1288342), (22, 995537), (34, 644171), (157, 139502), (187, 117122), (314, 69751), (373, 58718), (374, 58561), (746, 29359), (1727, 12682), (2669, 8206), (3454, 6341), (4103, 5338)]