19503764

素因数分解:

$2^2\times 7^2\times {\mathrm{151}}^1\times {\mathrm{659}}^1$

素因数の和:828

約数の個数: 36

約数和(自身を含む): 40027680

約数和(自身を除く): 20523916

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 151, 196, 302, 604, 659, 1057, 1318, 2114, 2636, 4228, 4613, 7399, 9226, 14798, 18452, 29596, 32291, 64582, 99509, 129164, 199018, 398036, 696563, 1393126, 2786252, 4875941, 9751882, 19503764]

約数ペア:

[(1, 19503764), (2, 9751882), (4, 4875941), (7, 2786252), (14, 1393126), (28, 696563), (49, 398036), (98, 199018), (151, 129164), (196, 99509), (302, 64582), (604, 32291), (659, 29596), (1057, 18452), (1318, 14798), (2114, 9226), (2636, 7399), (4228, 4613)]