19378736

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{617}}^1$

素因数の和:789

約数の個数: 40

約数和(自身を含む): 40768224

約数和(自身を除く): 21389488

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 151, 208, 302, 604, 617, 1208, 1234, 1963, 2416, 2468, 3926, 4936, 7852, 8021, 9872, 15704, 16042, 31408, 32084, 64168, 93167, 128336, 186334, 372668, 745336, 1211171, 1490672, 2422342, 4844684, 9689368, 19378736]

約数ペア:

[(1, 19378736), (2, 9689368), (4, 4844684), (8, 2422342), (13, 1490672), (16, 1211171), (26, 745336), (52, 372668), (104, 186334), (151, 128336), (208, 93167), (302, 64168), (604, 32084), (617, 31408), (1208, 16042), (1234, 15704), (1963, 9872), (2416, 8021), (2468, 7852), (3926, 4936)]