21270540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{461}}^1\times {\mathrm{769}}^1$

素因数の和:1242

約数の個数: 48

約数和(自身を含む): 59764320

約数和(自身を除く): 38493780

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 461, 769, 922, 1383, 1538, 1844, 2305, 2307, 2766, 3076, 3845, 4610, 4614, 5532, 6915, 7690, 9220, 9228, 11535, 13830, 15380, 23070, 27660, 46140, 354509, 709018, 1063527, 1418036, 1772545, 2127054, 3545090, 4254108, 5317635, 7090180, 10635270, 21270540]

約数ペア:

[(1, 21270540), (2, 10635270), (3, 7090180), (4, 5317635), (5, 4254108), (6, 3545090), (10, 2127054), (12, 1772545), (15, 1418036), (20, 1063527), (30, 709018), (60, 354509), (461, 46140), (769, 27660), (922, 23070), (1383, 15380), (1538, 13830), (1844, 11535), (2305, 9228), (2307, 9220), (2766, 7690), (3076, 6915), (3845, 5532), (4610, 4614)]