21294390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{54601}}^1$

素因数の和:54624

約数の個数: 32

約数和(自身を含む): 55038816

約数和(自身を除く): 33744426

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 54601, 109202, 163803, 273005, 327606, 546010, 709813, 819015, 1419626, 1638030, 2129439, 3549065, 4258878, 7098130, 10647195, 21294390]

約数ペア:

[(1, 21294390), (2, 10647195), (3, 7098130), (5, 4258878), (6, 3549065), (10, 2129439), (13, 1638030), (15, 1419626), (26, 819015), (30, 709813), (39, 546010), (65, 327606), (78, 273005), (130, 163803), (195, 109202), (390, 54601)]