21097536760

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{3794521}}^1$

素因数の和:3794671

約数の個数: 32

約数和(自身を含む): 47810977200

約数和(自身を除く): 26713440440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 3794521, 7589042, 15178084, 18972605, 30356168, 37945210, 75890420, 151780840, 527438419, 1054876838, 2109753676, 2637192095, 4219507352, 5274384190, 10548768380, 21097536760]

約数ペア:

[(1, 21097536760), (2, 10548768380), (4, 5274384190), (5, 4219507352), (8, 2637192095), (10, 2109753676), (20, 1054876838), (40, 527438419), (139, 151780840), (278, 75890420), (556, 37945210), (695, 30356168), (1112, 18972605), (1390, 15178084), (2780, 7589042), (5560, 3794521)]