21403804980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{439}}^1\times {\mathrm{812597}}^1$

素因数の和:813048

約数の個数: 48

約数和(自身を含む): 60067244160

約数和(自身を除く): 38663439180

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 439, 878, 1317, 1756, 2195, 2634, 4390, 5268, 6585, 8780, 13170, 26340, 812597, 1625194, 2437791, 3250388, 4062985, 4875582, 8125970, 9751164, 12188955, 16251940, 24377910, 48755820, 356730083, 713460166, 1070190249, 1426920332, 1783650415, 2140380498, 3567300830, 4280760996, 5350951245, 7134601660, 10701902490, 21403804980]

約数ペア:

[(1, 21403804980), (2, 10701902490), (3, 7134601660), (4, 5350951245), (5, 4280760996), (6, 3567300830), (10, 2140380498), (12, 1783650415), (15, 1426920332), (20, 1070190249), (30, 713460166), (60, 356730083), (439, 48755820), (878, 24377910), (1317, 16251940), (1756, 12188955), (2195, 9751164), (2634, 8125970), (4390, 4875582), (5268, 4062985), (6585, 3250388), (8780, 2437791), (13170, 1625194), (26340, 812597)]