19854496

素因数分解:

$2^5\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{409}}^1$

素因数の和:497

約数の個数: 48

約数和(自身を含む): 41224680

約数和(自身を除く): 21370184

約数列:

[1, 2, 4, 8, 16, 32, 37, 41, 74, 82, 148, 164, 296, 328, 409, 592, 656, 818, 1184, 1312, 1517, 1636, 3034, 3272, 6068, 6544, 12136, 13088, 15133, 16769, 24272, 30266, 33538, 48544, 60532, 67076, 121064, 134152, 242128, 268304, 484256, 536608, 620453, 1240906, 2481812, 4963624, 9927248, 19854496]

約数ペア:

[(1, 19854496), (2, 9927248), (4, 4963624), (8, 2481812), (16, 1240906), (32, 620453), (37, 536608), (41, 484256), (74, 268304), (82, 242128), (148, 134152), (164, 121064), (296, 67076), (328, 60532), (409, 48544), (592, 33538), (656, 30266), (818, 24272), (1184, 16769), (1312, 15133), (1517, 13088), (1636, 12136), (3034, 6544), (3272, 6068)]