19889898

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{313}}^1$

素因数の和:431

約数の個数: 64

約数和(自身を含む): 48833280

約数和(自身を除く): 28943382

約数列:

[1, 2, 3, 6, 7, 14, 17, 21, 34, 42, 51, 89, 102, 119, 178, 238, 267, 313, 357, 534, 623, 626, 714, 939, 1246, 1513, 1869, 1878, 2191, 3026, 3738, 4382, 4539, 5321, 6573, 9078, 10591, 10642, 13146, 15963, 21182, 27857, 31773, 31926, 37247, 55714, 63546, 74494, 83571, 111741, 167142, 194999, 223482, 389998, 473569, 584997, 947138, 1169994, 1420707, 2841414, 3314983, 6629966, 9944949, 19889898]

約数ペア:

[(1, 19889898), (2, 9944949), (3, 6629966), (6, 3314983), (7, 2841414), (14, 1420707), (17, 1169994), (21, 947138), (34, 584997), (42, 473569), (51, 389998), (89, 223482), (102, 194999), (119, 167142), (178, 111741), (238, 83571), (267, 74494), (313, 63546), (357, 55714), (534, 37247), (623, 31926), (626, 31773), (714, 27857), (939, 21182), (1246, 15963), (1513, 13146), (1869, 10642), (1878, 10591), (2191, 9078), (3026, 6573), (3738, 5321), (4382, 4539)]