217996857

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{1367}}^1$

素因数の和:1462

約数の個数: 48

約数和(自身を含む): 358525440

約数和(自身を除く): 140528583

約数列:

[1, 3, 9, 13, 29, 39, 47, 87, 117, 141, 261, 377, 423, 611, 1131, 1363, 1367, 1833, 3393, 4089, 4101, 5499, 12267, 12303, 17719, 17771, 39643, 53157, 53313, 64249, 118929, 159471, 159939, 192747, 356787, 515359, 578241, 835237, 1546077, 1863221, 2505711, 4638231, 5589663, 7517133, 16768989, 24221873, 72665619, 217996857]

約数ペア:

[(1, 217996857), (3, 72665619), (9, 24221873), (13, 16768989), (29, 7517133), (39, 5589663), (47, 4638231), (87, 2505711), (117, 1863221), (141, 1546077), (261, 835237), (377, 578241), (423, 515359), (611, 356787), (1131, 192747), (1363, 159939), (1367, 159471), (1833, 118929), (3393, 64249), (4089, 53313), (4101, 53157), (5499, 39643), (12267, 17771), (12303, 17719)]