21560535

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{167}}^1$

素因数の和:348

約数の個数: 48

約数和(自身を含む): 39836160

約数和(自身を除く): 18275625

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 151, 167, 171, 285, 453, 501, 755, 835, 855, 1359, 1503, 2265, 2505, 2869, 3173, 6795, 7515, 8607, 9519, 14345, 15865, 25217, 25821, 28557, 43035, 47595, 75651, 126085, 129105, 142785, 226953, 378255, 479123, 1134765, 1437369, 2395615, 4312107, 7186845, 21560535]

約数ペア:

[(1, 21560535), (3, 7186845), (5, 4312107), (9, 2395615), (15, 1437369), (19, 1134765), (45, 479123), (57, 378255), (95, 226953), (151, 142785), (167, 129105), (171, 126085), (285, 75651), (453, 47595), (501, 43035), (755, 28557), (835, 25821), (855, 25217), (1359, 15865), (1503, 14345), (2265, 9519), (2505, 8607), (2869, 7515), (3173, 6795)]