18901376

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{307}}^1$

素因数の和:371

約数の個数: 64

約数和(自身を含む): 41783280

約数和(自身を除く): 22881904

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 37, 52, 64, 74, 104, 128, 148, 208, 296, 307, 416, 481, 592, 614, 832, 962, 1184, 1228, 1664, 1924, 2368, 2456, 3848, 3991, 4736, 4912, 7696, 7982, 9824, 11359, 15392, 15964, 19648, 22718, 30784, 31928, 39296, 45436, 61568, 63856, 90872, 127712, 147667, 181744, 255424, 295334, 363488, 510848, 590668, 726976, 1181336, 1453952, 2362672, 4725344, 9450688, 18901376]

約数ペア:

[(1, 18901376), (2, 9450688), (4, 4725344), (8, 2362672), (13, 1453952), (16, 1181336), (26, 726976), (32, 590668), (37, 510848), (52, 363488), (64, 295334), (74, 255424), (104, 181744), (128, 147667), (148, 127712), (208, 90872), (296, 63856), (307, 61568), (416, 45436), (481, 39296), (592, 31928), (614, 30784), (832, 22718), (962, 19648), (1184, 15964), (1228, 15392), (1664, 11359), (1924, 9824), (2368, 7982), (2456, 7696), (3848, 4912), (3991, 4736)]