21077212

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{211}}^1$

素因数の和:358

約数の個数: 48

約数和(自身を含む): 42632352

約数和(自身を除く): 21555140

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 113, 211, 221, 226, 422, 442, 452, 844, 884, 1469, 1921, 2743, 2938, 3587, 3842, 5486, 5876, 7174, 7684, 10972, 14348, 23843, 24973, 46631, 47686, 49946, 93262, 95372, 99892, 186524, 309959, 405331, 619918, 810662, 1239836, 1621324, 5269303, 10538606, 21077212]

約数ペア:

[(1, 21077212), (2, 10538606), (4, 5269303), (13, 1621324), (17, 1239836), (26, 810662), (34, 619918), (52, 405331), (68, 309959), (113, 186524), (211, 99892), (221, 95372), (226, 93262), (422, 49946), (442, 47686), (452, 46631), (844, 24973), (884, 23843), (1469, 14348), (1921, 10972), (2743, 7684), (2938, 7174), (3587, 5876), (3842, 5486)]