19720344

素因数分解:

$2^3\times 3^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{409}}^1$

素因数の和:473

約数の個数: 96

約数和(自身を含む): 58892400

約数和(自身を除く): 39172056

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 41, 42, 49, 56, 82, 84, 98, 123, 147, 164, 168, 196, 246, 287, 294, 328, 392, 409, 492, 574, 588, 818, 861, 984, 1148, 1176, 1227, 1636, 1722, 2009, 2296, 2454, 2863, 3272, 3444, 4018, 4908, 5726, 6027, 6888, 8036, 8589, 9816, 11452, 12054, 16072, 16769, 17178, 20041, 22904, 24108, 33538, 34356, 40082, 48216, 50307, 60123, 67076, 68712, 80164, 100614, 117383, 120246, 134152, 160328, 201228, 234766, 240492, 352149, 402456, 469532, 480984, 704298, 821681, 939064, 1408596, 1643362, 2465043, 2817192, 3286724, 4930086, 6573448, 9860172, 19720344]

約数ペア:

[(1, 19720344), (2, 9860172), (3, 6573448), (4, 4930086), (6, 3286724), (7, 2817192), (8, 2465043), (12, 1643362), (14, 1408596), (21, 939064), (24, 821681), (28, 704298), (41, 480984), (42, 469532), (49, 402456), (56, 352149), (82, 240492), (84, 234766), (98, 201228), (123, 160328), (147, 134152), (164, 120246), (168, 117383), (196, 100614), (246, 80164), (287, 68712), (294, 67076), (328, 60123), (392, 50307), (409, 48216), (492, 40082), (574, 34356), (588, 33538), (818, 24108), (861, 22904), (984, 20041), (1148, 17178), (1176, 16769), (1227, 16072), (1636, 12054), (1722, 11452), (2009, 9816), (2296, 8589), (2454, 8036), (2863, 6888), (3272, 6027), (3444, 5726), (4018, 4908)]