198216369

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{571}}^1$

素因数の和:659

約数の個数: 64

約数和(自身を含む): 338257920

約数和(自身を除く): 140041551

約数列:

[1, 3, 9, 13, 23, 27, 39, 43, 69, 117, 129, 207, 299, 351, 387, 559, 571, 621, 897, 989, 1161, 1677, 1713, 2691, 2967, 5031, 5139, 7423, 8073, 8901, 12857, 13133, 15093, 15417, 22269, 24553, 26703, 38571, 39399, 66807, 73659, 115713, 118197, 170729, 200421, 220977, 319189, 347139, 354591, 512187, 564719, 662931, 957567, 1536561, 1694157, 2872701, 4609683, 5082471, 7341347, 8618103, 15247413, 22024041, 66072123, 198216369]

約数ペア:

[(1, 198216369), (3, 66072123), (9, 22024041), (13, 15247413), (23, 8618103), (27, 7341347), (39, 5082471), (43, 4609683), (69, 2872701), (117, 1694157), (129, 1536561), (207, 957567), (299, 662931), (351, 564719), (387, 512187), (559, 354591), (571, 347139), (621, 319189), (897, 220977), (989, 200421), (1161, 170729), (1677, 118197), (1713, 115713), (2691, 73659), (2967, 66807), (5031, 39399), (5139, 38571), (7423, 26703), (8073, 24553), (8901, 22269), (12857, 15417), (13133, 15093)]