21241738

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{599}}^1$

素因数の和:774

約数の個数: 32

約数和(自身を含む): 38880000

約数和(自身を除く): 17638262

約数列:

[1, 2, 7, 14, 17, 34, 119, 149, 238, 298, 599, 1043, 1198, 2086, 2533, 4193, 5066, 8386, 10183, 17731, 20366, 35462, 71281, 89251, 142562, 178502, 624757, 1249514, 1517267, 3034534, 10620869, 21241738]

約数ペア:

[(1, 21241738), (2, 10620869), (7, 3034534), (14, 1517267), (17, 1249514), (34, 624757), (119, 178502), (149, 142562), (238, 89251), (298, 71281), (599, 35462), (1043, 20366), (1198, 17731), (2086, 10183), (2533, 8386), (4193, 5066)]