21693800

素因数分解:

$2^3\times 5^2\times {\mathrm{31}}^1\times {\mathrm{3499}}^1$

素因数の和:3546

約数の個数: 48

約数和(自身を含む): 52080000

約数和(自身を除く): 30386200

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 100, 124, 155, 200, 248, 310, 620, 775, 1240, 1550, 3100, 3499, 6200, 6998, 13996, 17495, 27992, 34990, 69980, 87475, 108469, 139960, 174950, 216938, 349900, 433876, 542345, 699800, 867752, 1084690, 2169380, 2711725, 4338760, 5423450, 10846900, 21693800]

約数ペア:

[(1, 21693800), (2, 10846900), (4, 5423450), (5, 4338760), (8, 2711725), (10, 2169380), (20, 1084690), (25, 867752), (31, 699800), (40, 542345), (50, 433876), (62, 349900), (100, 216938), (124, 174950), (155, 139960), (200, 108469), (248, 87475), (310, 69980), (620, 34990), (775, 27992), (1240, 17495), (1550, 13996), (3100, 6998), (3499, 6200)]