19919196

素因数分解:

$2^2\times 3^9\times {\mathrm{11}}^1\times {\mathrm{23}}^1$

素因数の和:65

約数の個数: 120

約数和(自身を含む): 59520384

約数和(自身を除く): 39601188

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 23, 27, 33, 36, 44, 46, 54, 66, 69, 81, 92, 99, 108, 132, 138, 162, 198, 207, 243, 253, 276, 297, 324, 396, 414, 486, 506, 594, 621, 729, 759, 828, 891, 972, 1012, 1188, 1242, 1458, 1518, 1782, 1863, 2187, 2277, 2484, 2673, 2916, 3036, 3564, 3726, 4374, 4554, 5346, 5589, 6561, 6831, 7452, 8019, 8748, 9108, 10692, 11178, 13122, 13662, 16038, 16767, 19683, 20493, 22356, 24057, 26244, 27324, 32076, 33534, 39366, 40986, 48114, 50301, 61479, 67068, 72171, 78732, 81972, 96228, 100602, 122958, 144342, 150903, 184437, 201204, 216513, 245916, 288684, 301806, 368874, 433026, 452709, 553311, 603612, 737748, 866052, 905418, 1106622, 1659933, 1810836, 2213244, 3319866, 4979799, 6639732, 9959598, 19919196]

約数ペア:

[(1, 19919196), (2, 9959598), (3, 6639732), (4, 4979799), (6, 3319866), (9, 2213244), (11, 1810836), (12, 1659933), (18, 1106622), (22, 905418), (23, 866052), (27, 737748), (33, 603612), (36, 553311), (44, 452709), (46, 433026), (54, 368874), (66, 301806), (69, 288684), (81, 245916), (92, 216513), (99, 201204), (108, 184437), (132, 150903), (138, 144342), (162, 122958), (198, 100602), (207, 96228), (243, 81972), (253, 78732), (276, 72171), (297, 67068), (324, 61479), (396, 50301), (414, 48114), (486, 40986), (506, 39366), (594, 33534), (621, 32076), (729, 27324), (759, 26244), (828, 24057), (891, 22356), (972, 20493), (1012, 19683), (1188, 16767), (1242, 16038), (1458, 13662), (1518, 13122), (1782, 11178), (1863, 10692), (2187, 9108), (2277, 8748), (2484, 8019), (2673, 7452), (2916, 6831), (3036, 6561), (3564, 5589), (3726, 5346), (4374, 4554)]