20343908

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{349}}^1$

素因数の和:444

約数の個数: 48

約数和(自身を含む): 41160000

約数和(自身を除く): 20816092

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 59, 76, 118, 236, 247, 349, 494, 698, 767, 988, 1121, 1396, 1534, 2242, 3068, 4484, 4537, 6631, 9074, 13262, 14573, 18148, 20591, 26524, 29146, 41182, 58292, 82364, 86203, 172406, 267683, 344812, 391229, 535366, 782458, 1070732, 1564916, 5085977, 10171954, 20343908]

約数ペア:

[(1, 20343908), (2, 10171954), (4, 5085977), (13, 1564916), (19, 1070732), (26, 782458), (38, 535366), (52, 391229), (59, 344812), (76, 267683), (118, 172406), (236, 86203), (247, 82364), (349, 58292), (494, 41182), (698, 29146), (767, 26524), (988, 20591), (1121, 18148), (1396, 14573), (1534, 13262), (2242, 9074), (3068, 6631), (4484, 4537)]