21223228

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{21481}}^1$

素因数の和:21517

約数の個数: 24

約数和(自身を含む): 42104720

約数和(自身を除く): 20881492

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988, 21481, 42962, 85924, 279253, 408139, 558506, 816278, 1117012, 1632556, 5305807, 10611614, 21223228]

約数ペア:

[(1, 21223228), (2, 10611614), (4, 5305807), (13, 1632556), (19, 1117012), (26, 816278), (38, 558506), (52, 408139), (76, 279253), (247, 85924), (494, 42962), (988, 21481)]