21787132

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{47}}^1\times {\mathrm{401}}^1$

素因数の和:486

約数の個数: 36

約数和(自身を含む): 41467104

約数和(自身を除く): 19679972

約数列:

[1, 2, 4, 17, 34, 47, 68, 94, 188, 289, 401, 578, 799, 802, 1156, 1598, 1604, 3196, 6817, 13583, 13634, 18847, 27166, 27268, 37694, 54332, 75388, 115889, 231778, 320399, 463556, 640798, 1281596, 5446783, 10893566, 21787132]

約数ペア:

[(1, 21787132), (2, 10893566), (4, 5446783), (17, 1281596), (34, 640798), (47, 463556), (68, 320399), (94, 231778), (188, 115889), (289, 75388), (401, 54332), (578, 37694), (799, 27268), (802, 27166), (1156, 18847), (1598, 13634), (1604, 13583), (3196, 6817)]