19980972

素因数分解:

$2^2\times 3^3\times {\mathrm{11}}^3\times {\mathrm{139}}^1$

素因数の和:185

約数の個数: 96

約数和(自身を含む): 57388800

約数和(自身を除く): 37407828

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 27, 33, 36, 44, 54, 66, 99, 108, 121, 132, 139, 198, 242, 278, 297, 363, 396, 417, 484, 556, 594, 726, 834, 1089, 1188, 1251, 1331, 1452, 1529, 1668, 2178, 2502, 2662, 3058, 3267, 3753, 3993, 4356, 4587, 5004, 5324, 6116, 6534, 7506, 7986, 9174, 11979, 13068, 13761, 15012, 15972, 16819, 18348, 23958, 27522, 33638, 35937, 41283, 47916, 50457, 55044, 67276, 71874, 82566, 100914, 143748, 151371, 165132, 185009, 201828, 302742, 370018, 454113, 555027, 605484, 740036, 908226, 1110054, 1665081, 1816452, 2220108, 3330162, 4995243, 6660324, 9990486, 19980972]

約数ペア:

[(1, 19980972), (2, 9990486), (3, 6660324), (4, 4995243), (6, 3330162), (9, 2220108), (11, 1816452), (12, 1665081), (18, 1110054), (22, 908226), (27, 740036), (33, 605484), (36, 555027), (44, 454113), (54, 370018), (66, 302742), (99, 201828), (108, 185009), (121, 165132), (132, 151371), (139, 143748), (198, 100914), (242, 82566), (278, 71874), (297, 67276), (363, 55044), (396, 50457), (417, 47916), (484, 41283), (556, 35937), (594, 33638), (726, 27522), (834, 23958), (1089, 18348), (1188, 16819), (1251, 15972), (1331, 15012), (1452, 13761), (1529, 13068), (1668, 11979), (2178, 9174), (2502, 7986), (2662, 7506), (3058, 6534), (3267, 6116), (3753, 5324), (3993, 5004), (4356, 4587)]