19912068

素因数分解:

$2^2\times 3^4\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{151}}^1$

素因数の和:215

約数の個数: 120

約数和(自身を含む): 58707264

約数和(自身を除く): 38795196

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 27, 33, 36, 37, 44, 54, 66, 74, 81, 99, 108, 111, 132, 148, 151, 162, 198, 222, 297, 302, 324, 333, 396, 407, 444, 453, 594, 604, 666, 814, 891, 906, 999, 1188, 1221, 1332, 1359, 1628, 1661, 1782, 1812, 1998, 2442, 2718, 2997, 3322, 3564, 3663, 3996, 4077, 4884, 4983, 5436, 5587, 5994, 6644, 7326, 8154, 9966, 10989, 11174, 11988, 12231, 14652, 14949, 16308, 16761, 19932, 21978, 22348, 24462, 29898, 32967, 33522, 43956, 44847, 48924, 50283, 59796, 61457, 65934, 67044, 89694, 100566, 122914, 131868, 134541, 150849, 179388, 184371, 201132, 245828, 269082, 301698, 368742, 452547, 538164, 553113, 603396, 737484, 905094, 1106226, 1659339, 1810188, 2212452, 3318678, 4978017, 6637356, 9956034, 19912068]

約数ペア:

[(1, 19912068), (2, 9956034), (3, 6637356), (4, 4978017), (6, 3318678), (9, 2212452), (11, 1810188), (12, 1659339), (18, 1106226), (22, 905094), (27, 737484), (33, 603396), (36, 553113), (37, 538164), (44, 452547), (54, 368742), (66, 301698), (74, 269082), (81, 245828), (99, 201132), (108, 184371), (111, 179388), (132, 150849), (148, 134541), (151, 131868), (162, 122914), (198, 100566), (222, 89694), (297, 67044), (302, 65934), (324, 61457), (333, 59796), (396, 50283), (407, 48924), (444, 44847), (453, 43956), (594, 33522), (604, 32967), (666, 29898), (814, 24462), (891, 22348), (906, 21978), (999, 19932), (1188, 16761), (1221, 16308), (1332, 14949), (1359, 14652), (1628, 12231), (1661, 11988), (1782, 11174), (1812, 10989), (1998, 9966), (2442, 8154), (2718, 7326), (2997, 6644), (3322, 5994), (3564, 5587), (3663, 5436), (3996, 4983), (4077, 4884)]