21492420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1109}}^1$

素因数の和:1157

約数の個数: 96

約数和(自身を含む): 67132800

約数和(自身を除く): 45640380

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 19, 20, 30, 34, 38, 51, 57, 60, 68, 76, 85, 95, 102, 114, 170, 190, 204, 228, 255, 285, 323, 340, 380, 510, 570, 646, 969, 1020, 1109, 1140, 1292, 1615, 1938, 2218, 3230, 3327, 3876, 4436, 4845, 5545, 6460, 6654, 9690, 11090, 13308, 16635, 18853, 19380, 21071, 22180, 33270, 37706, 42142, 56559, 63213, 66540, 75412, 84284, 94265, 105355, 113118, 126426, 188530, 210710, 226236, 252852, 282795, 316065, 358207, 377060, 421420, 565590, 632130, 716414, 1074621, 1131180, 1264260, 1432828, 1791035, 2149242, 3582070, 4298484, 5373105, 7164140, 10746210, 21492420]

約数ペア:

[(1, 21492420), (2, 10746210), (3, 7164140), (4, 5373105), (5, 4298484), (6, 3582070), (10, 2149242), (12, 1791035), (15, 1432828), (17, 1264260), (19, 1131180), (20, 1074621), (30, 716414), (34, 632130), (38, 565590), (51, 421420), (57, 377060), (60, 358207), (68, 316065), (76, 282795), (85, 252852), (95, 226236), (102, 210710), (114, 188530), (170, 126426), (190, 113118), (204, 105355), (228, 94265), (255, 84284), (285, 75412), (323, 66540), (340, 63213), (380, 56559), (510, 42142), (570, 37706), (646, 33270), (969, 22180), (1020, 21071), (1109, 19380), (1140, 18853), (1292, 16635), (1615, 13308), (1938, 11090), (2218, 9690), (3230, 6654), (3327, 6460), (3876, 5545), (4436, 4845)]