19976706

素因数分解:

$2^1\times 3^4\times {\mathrm{317}}^1\times {\mathrm{389}}^1$

素因数の和:720

約数の個数: 40

約数和(自身を含む): 45019260

約数和(自身を除く): 25042554

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 317, 389, 634, 778, 951, 1167, 1902, 2334, 2853, 3501, 5706, 7002, 8559, 10503, 17118, 21006, 25677, 31509, 51354, 63018, 123313, 246626, 369939, 739878, 1109817, 2219634, 3329451, 6658902, 9988353, 19976706]

約数ペア:

[(1, 19976706), (2, 9988353), (3, 6658902), (6, 3329451), (9, 2219634), (18, 1109817), (27, 739878), (54, 369939), (81, 246626), (162, 123313), (317, 63018), (389, 51354), (634, 31509), (778, 25677), (951, 21006), (1167, 17118), (1902, 10503), (2334, 8559), (2853, 7002), (3501, 5706)]