18130736

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1301}}^1$

素因数の和:1389

約数の個数: 40

約数和(自身を含む): 38424624

約数和(自身を除く): 20293888

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 67, 104, 134, 208, 268, 536, 871, 1072, 1301, 1742, 2602, 3484, 5204, 6968, 10408, 13936, 16913, 20816, 33826, 67652, 87167, 135304, 174334, 270608, 348668, 697336, 1133171, 1394672, 2266342, 4532684, 9065368, 18130736]

約数ペア:

[(1, 18130736), (2, 9065368), (4, 4532684), (8, 2266342), (13, 1394672), (16, 1133171), (26, 697336), (52, 348668), (67, 270608), (104, 174334), (134, 135304), (208, 87167), (268, 67652), (536, 33826), (871, 20816), (1072, 16913), (1301, 13936), (1742, 10408), (2602, 6968), (3484, 5204)]