19123504

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{167}}^1\times {\mathrm{421}}^1$

素因数の和:613

約数の個数: 40

約数和(自身を含む): 39559968

約数和(自身を除く): 20436464

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 167, 272, 334, 421, 668, 842, 1336, 1684, 2672, 2839, 3368, 5678, 6736, 7157, 11356, 14314, 22712, 28628, 45424, 57256, 70307, 114512, 140614, 281228, 562456, 1124912, 1195219, 2390438, 4780876, 9561752, 19123504]

約数ペア:

[(1, 19123504), (2, 9561752), (4, 4780876), (8, 2390438), (16, 1195219), (17, 1124912), (34, 562456), (68, 281228), (136, 140614), (167, 114512), (272, 70307), (334, 57256), (421, 45424), (668, 28628), (842, 22712), (1336, 14314), (1684, 11356), (2672, 7157), (2839, 6736), (3368, 5678)]