21372196

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{4691}}^1$

素因数の和:4779

約数の個数: 24

約数和(自身を含む): 40201056

約数和(自身を除く): 18828860

約数列:

[1, 2, 4, 17, 34, 67, 68, 134, 268, 1139, 2278, 4556, 4691, 9382, 18764, 79747, 159494, 314297, 318988, 628594, 1257188, 5343049, 10686098, 21372196]

約数ペア:

[(1, 21372196), (2, 10686098), (4, 5343049), (17, 1257188), (34, 628594), (67, 318988), (68, 314297), (134, 159494), (268, 79747), (1139, 18764), (2278, 9382), (4556, 4691)]