20539155

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{367}}^1$

素因数の和:436

約数の個数: 64

約数和(自身を含む): 41545728

約数和(自身を除く): 21006573

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 41, 65, 91, 105, 123, 195, 205, 273, 287, 367, 455, 533, 615, 861, 1101, 1365, 1435, 1599, 1835, 2569, 2665, 3731, 4305, 4771, 5505, 7707, 7995, 11193, 12845, 14313, 15047, 18655, 23855, 33397, 38535, 45141, 55965, 71565, 75235, 100191, 105329, 166985, 195611, 225705, 315987, 500955, 526645, 586833, 978055, 1369277, 1579935, 2934165, 4107831, 6846385, 20539155]

約数ペア:

[(1, 20539155), (3, 6846385), (5, 4107831), (7, 2934165), (13, 1579935), (15, 1369277), (21, 978055), (35, 586833), (39, 526645), (41, 500955), (65, 315987), (91, 225705), (105, 195611), (123, 166985), (195, 105329), (205, 100191), (273, 75235), (287, 71565), (367, 55965), (455, 45141), (533, 38535), (615, 33397), (861, 23855), (1101, 18655), (1365, 15047), (1435, 14313), (1599, 12845), (1835, 11193), (2569, 7995), (2665, 7707), (3731, 5505), (4305, 4771)]