21364365

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{79}}^1\times {\mathrm{149}}^1$

素因数の和:258

約数の個数: 48

約数和(自身を含む): 38304000

約数和(自身を除く): 16939635

約数列:

[1, 3, 5, 11, 15, 33, 55, 79, 121, 149, 165, 237, 363, 395, 447, 605, 745, 869, 1185, 1639, 1815, 2235, 2607, 4345, 4917, 8195, 9559, 11771, 13035, 18029, 24585, 28677, 35313, 47795, 54087, 58855, 90145, 129481, 143385, 176565, 270435, 388443, 647405, 1424291, 1942215, 4272873, 7121455, 21364365]

約数ペア:

[(1, 21364365), (3, 7121455), (5, 4272873), (11, 1942215), (15, 1424291), (33, 647405), (55, 388443), (79, 270435), (121, 176565), (149, 143385), (165, 129481), (237, 90145), (363, 58855), (395, 54087), (447, 47795), (605, 35313), (745, 28677), (869, 24585), (1185, 18029), (1639, 13035), (1815, 11771), (2235, 9559), (2607, 8195), (4345, 4917)]