18934564

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1$

素因数の和:145

約数の個数: 72

約数和(自身を含む): 40219200

約数和(自身を除く): 21284636

約数列:

[1, 2, 4, 11, 19, 22, 29, 38, 44, 58, 71, 76, 116, 121, 142, 209, 242, 284, 319, 418, 484, 551, 638, 781, 836, 1102, 1276, 1349, 1562, 2059, 2204, 2299, 2698, 3124, 3509, 4118, 4598, 5396, 6061, 7018, 8236, 8591, 9196, 12122, 14036, 14839, 17182, 22649, 24244, 29678, 34364, 39121, 45298, 59356, 66671, 78242, 90596, 133342, 156484, 163229, 249139, 266684, 326458, 430331, 498278, 652916, 860662, 996556, 1721324, 4733641, 9467282, 18934564]

約数ペア:

[(1, 18934564), (2, 9467282), (4, 4733641), (11, 1721324), (19, 996556), (22, 860662), (29, 652916), (38, 498278), (44, 430331), (58, 326458), (71, 266684), (76, 249139), (116, 163229), (121, 156484), (142, 133342), (209, 90596), (242, 78242), (284, 66671), (319, 59356), (418, 45298), (484, 39121), (551, 34364), (638, 29678), (781, 24244), (836, 22649), (1102, 17182), (1276, 14839), (1349, 14036), (1562, 12122), (2059, 9196), (2204, 8591), (2299, 8236), (2698, 7018), (3124, 6061), (3509, 5396), (4118, 4598)]