19796452

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^2$

素因数の和:236

約数の個数: 36

約数和(自身を含む): 38406396

約数和(自身を除く): 18609944

約数列:

[1, 2, 4, 13, 26, 52, 61, 79, 122, 158, 244, 316, 793, 1027, 1586, 2054, 3172, 4108, 4819, 6241, 9638, 12482, 19276, 24964, 62647, 81133, 125294, 162266, 250588, 324532, 380701, 761402, 1522804, 4949113, 9898226, 19796452]

約数ペア:

[(1, 19796452), (2, 9898226), (4, 4949113), (13, 1522804), (26, 761402), (52, 380701), (61, 324532), (79, 250588), (122, 162266), (158, 125294), (244, 81133), (316, 62647), (793, 24964), (1027, 19276), (1586, 12482), (2054, 9638), (3172, 6241), (4108, 4819)]