21873975

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1$

素因数の和:244

約数の個数: 48

約数和(自身を含む): 38167200

約数和(自身を除く): 16293225

約数列:

[1, 3, 5, 15, 25, 29, 75, 87, 89, 113, 145, 267, 339, 435, 445, 565, 725, 1335, 1695, 2175, 2225, 2581, 2825, 3277, 6675, 7743, 8475, 9831, 10057, 12905, 16385, 30171, 38715, 49155, 50285, 64525, 81925, 150855, 193575, 245775, 251425, 291653, 754275, 874959, 1458265, 4374795, 7291325, 21873975]

約数ペア:

[(1, 21873975), (3, 7291325), (5, 4374795), (15, 1458265), (25, 874959), (29, 754275), (75, 291653), (87, 251425), (89, 245775), (113, 193575), (145, 150855), (267, 81925), (339, 64525), (435, 50285), (445, 49155), (565, 38715), (725, 30171), (1335, 16385), (1695, 12905), (2175, 10057), (2225, 9831), (2581, 8475), (2825, 7743), (3277, 6675)]