21851596

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1301}}^1$

素因数の和:1354

約数の個数: 48

約数和(自身を含む): 45934560

約数和(自身を除く): 24082964

約数列:

[1, 2, 4, 13, 17, 19, 26, 34, 38, 52, 68, 76, 221, 247, 323, 442, 494, 646, 884, 988, 1292, 1301, 2602, 4199, 5204, 8398, 16796, 16913, 22117, 24719, 33826, 44234, 49438, 67652, 88468, 98876, 287521, 321347, 420223, 575042, 642694, 840446, 1150084, 1285388, 1680892, 5462899, 10925798, 21851596]

約数ペア:

[(1, 21851596), (2, 10925798), (4, 5462899), (13, 1680892), (17, 1285388), (19, 1150084), (26, 840446), (34, 642694), (38, 575042), (52, 420223), (68, 321347), (76, 287521), (221, 98876), (247, 88468), (323, 67652), (442, 49438), (494, 44234), (646, 33826), (884, 24719), (988, 22117), (1292, 16913), (1301, 16796), (2602, 8398), (4199, 5204)]