21129164

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{44389}}^1$

素因数の和:44417

約数の個数: 24

約数和(自身を含む): 44745120

約数和(自身を除く): 23615956

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 476, 44389, 88778, 177556, 310723, 621446, 754613, 1242892, 1509226, 3018452, 5282291, 10564582, 21129164]

約数ペア:

[(1, 21129164), (2, 10564582), (4, 5282291), (7, 3018452), (14, 1509226), (17, 1242892), (28, 754613), (34, 621446), (68, 310723), (119, 177556), (238, 88778), (476, 44389)]