20926425

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^3\times {\mathrm{127}}^1$

素因数の和:179

約数の個数: 48

約数和(自身を含む): 37775360

約数和(自身を除く): 16848935

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 127, 169, 195, 325, 381, 507, 635, 845, 975, 1651, 1905, 2197, 2535, 3175, 4225, 4953, 6591, 8255, 9525, 10985, 12675, 21463, 24765, 32955, 41275, 54925, 64389, 107315, 123825, 164775, 279019, 321945, 536575, 837057, 1395095, 1609725, 4185285, 6975475, 20926425]

約数ペア:

[(1, 20926425), (3, 6975475), (5, 4185285), (13, 1609725), (15, 1395095), (25, 837057), (39, 536575), (65, 321945), (75, 279019), (127, 164775), (169, 123825), (195, 107315), (325, 64389), (381, 54925), (507, 41275), (635, 32955), (845, 24765), (975, 21463), (1651, 12675), (1905, 10985), (2197, 9525), (2535, 8255), (3175, 6591), (4225, 4953)]