19914996

素因数分解:

$2^2\times 3^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{643}}^1$

素因数の和:768

約数の個数: 48

約数和(自身を含む): 48686400

約数和(自身を除く): 28771404

約数列:

[1, 2, 3, 4, 6, 12, 29, 58, 87, 89, 116, 174, 178, 267, 348, 356, 534, 643, 1068, 1286, 1929, 2572, 2581, 3858, 5162, 7716, 7743, 10324, 15486, 18647, 30972, 37294, 55941, 57227, 74588, 111882, 114454, 171681, 223764, 228908, 343362, 686724, 1659583, 3319166, 4978749, 6638332, 9957498, 19914996]

約数ペア:

[(1, 19914996), (2, 9957498), (3, 6638332), (4, 4978749), (6, 3319166), (12, 1659583), (29, 686724), (58, 343362), (87, 228908), (89, 223764), (116, 171681), (174, 114454), (178, 111882), (267, 74588), (348, 57227), (356, 55941), (534, 37294), (643, 30972), (1068, 18647), (1286, 15486), (1929, 10324), (2572, 7743), (2581, 7716), (3858, 5162)]