20506395

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{181}}^1$

素因数の和:292

約数の個数: 64

約数和(自身を含む): 41094144

約数和(自身を除く): 20587749

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 83, 91, 105, 181, 195, 249, 273, 415, 455, 543, 581, 905, 1079, 1245, 1267, 1365, 1743, 2353, 2715, 2905, 3237, 3801, 5395, 6335, 7059, 7553, 8715, 11765, 15023, 16185, 16471, 19005, 22659, 35295, 37765, 45069, 49413, 75115, 82355, 105161, 113295, 195299, 225345, 247065, 315483, 525805, 585897, 976495, 1367093, 1577415, 2929485, 4101279, 6835465, 20506395]

約数ペア:

[(1, 20506395), (3, 6835465), (5, 4101279), (7, 2929485), (13, 1577415), (15, 1367093), (21, 976495), (35, 585897), (39, 525805), (65, 315483), (83, 247065), (91, 225345), (105, 195299), (181, 113295), (195, 105161), (249, 82355), (273, 75115), (415, 49413), (455, 45069), (543, 37765), (581, 35295), (905, 22659), (1079, 19005), (1245, 16471), (1267, 16185), (1365, 15023), (1743, 11765), (2353, 8715), (2715, 7553), (2905, 7059), (3237, 6335), (3801, 5395)]