21240618

素因数分解:

$2^1\times 3^1\times 7^3\times {\mathrm{10321}}^1$

素因数の和:10347

約数の個数: 32

約数和(自身を含む): 49545600

約数和(自身を除く): 28304982

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 147, 294, 343, 686, 1029, 2058, 10321, 20642, 30963, 61926, 72247, 144494, 216741, 433482, 505729, 1011458, 1517187, 3034374, 3540103, 7080206, 10620309, 21240618]

約数ペア:

[(1, 21240618), (2, 10620309), (3, 7080206), (6, 3540103), (7, 3034374), (14, 1517187), (21, 1011458), (42, 505729), (49, 433482), (98, 216741), (147, 144494), (294, 72247), (343, 61926), (686, 30963), (1029, 20642), (2058, 10321)]