21213686884

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{487}}^1\times {\mathrm{44089}}^1$

素因数の和:44612

約数の個数: 48

約数和(自身を含む): 42171203200

約数和(自身を除く): 20957516316

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 487, 494, 974, 988, 1948, 6331, 9253, 12662, 18506, 25324, 37012, 44089, 88178, 120289, 176356, 240578, 481156, 573157, 837691, 1146314, 1675382, 2292628, 3350764, 10889983, 21471343, 21779966, 42942686, 43559932, 85885372, 279127459, 407955517, 558254918, 815911034, 1116509836, 1631822068, 5303421721, 10606843442, 21213686884]

約数ペア:

[(1, 21213686884), (2, 10606843442), (4, 5303421721), (13, 1631822068), (19, 1116509836), (26, 815911034), (38, 558254918), (52, 407955517), (76, 279127459), (247, 85885372), (487, 43559932), (494, 42942686), (974, 21779966), (988, 21471343), (1948, 10889983), (6331, 3350764), (9253, 2292628), (12662, 1675382), (18506, 1146314), (25324, 837691), (37012, 573157), (44089, 481156), (88178, 240578), (120289, 176356)]