21487626

素因数分解:

$2^1\times 3^3\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{263}}^1$

素因数の和:380

約数の個数: 64

約数和(自身を含む): 51321600

約数和(自身を除く): 29833974

約数列:

[1, 2, 3, 6, 9, 17, 18, 27, 34, 51, 54, 89, 102, 153, 178, 263, 267, 306, 459, 526, 534, 789, 801, 918, 1513, 1578, 1602, 2367, 2403, 3026, 4471, 4539, 4734, 4806, 7101, 8942, 9078, 13413, 13617, 14202, 23407, 26826, 27234, 40239, 40851, 46814, 70221, 80478, 81702, 120717, 140442, 210663, 241434, 397919, 421326, 631989, 795838, 1193757, 1263978, 2387514, 3581271, 7162542, 10743813, 21487626]

約数ペア:

[(1, 21487626), (2, 10743813), (3, 7162542), (6, 3581271), (9, 2387514), (17, 1263978), (18, 1193757), (27, 795838), (34, 631989), (51, 421326), (54, 397919), (89, 241434), (102, 210663), (153, 140442), (178, 120717), (263, 81702), (267, 80478), (306, 70221), (459, 46814), (526, 40851), (534, 40239), (789, 27234), (801, 26826), (918, 23407), (1513, 14202), (1578, 13617), (1602, 13413), (2367, 9078), (2403, 8942), (3026, 7101), (4471, 4806), (4539, 4734)]