19992272

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{2371}}^1$

素因数の和:2427

約数の個数: 40

約数和(自身を含む): 42354432

約数和(自身を除く): 22362160

約数列:

[1, 2, 4, 8, 16, 17, 31, 34, 62, 68, 124, 136, 248, 272, 496, 527, 1054, 2108, 2371, 4216, 4742, 8432, 9484, 18968, 37936, 40307, 73501, 80614, 147002, 161228, 294004, 322456, 588008, 644912, 1176016, 1249517, 2499034, 4998068, 9996136, 19992272]

約数ペア:

[(1, 19992272), (2, 9996136), (4, 4998068), (8, 2499034), (16, 1249517), (17, 1176016), (31, 644912), (34, 588008), (62, 322456), (68, 294004), (124, 161228), (136, 147002), (248, 80614), (272, 73501), (496, 40307), (527, 37936), (1054, 18968), (2108, 9484), (2371, 8432), (4216, 4742)]