21024250

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{6469}}^1$

素因数の和:6499

約数の個数: 32

約数和(自身を含む): 42391440

約数和(自身を除く): 21367190

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 325, 650, 1625, 3250, 6469, 12938, 32345, 64690, 84097, 161725, 168194, 323450, 420485, 808625, 840970, 1617250, 2102425, 4204850, 10512125, 21024250]

約数ペア:

[(1, 21024250), (2, 10512125), (5, 4204850), (10, 2102425), (13, 1617250), (25, 840970), (26, 808625), (50, 420485), (65, 323450), (125, 168194), (130, 161725), (250, 84097), (325, 64690), (650, 32345), (1625, 12938), (3250, 6469)]