19850193

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{173}}^1$

素因数の和:270

約数の個数: 48

約数和(自身を含む): 33658560

約数和(自身を除く): 13808367

約数列:

[1, 3, 9, 11, 19, 33, 57, 61, 99, 171, 173, 183, 209, 519, 549, 627, 671, 1159, 1557, 1881, 1903, 2013, 3287, 3477, 5709, 6039, 9861, 10431, 10553, 12749, 17127, 29583, 31659, 36157, 38247, 94977, 108471, 114741, 116083, 200507, 325413, 348249, 601521, 1044747, 1804563, 2205577, 6616731, 19850193]

約数ペア:

[(1, 19850193), (3, 6616731), (9, 2205577), (11, 1804563), (19, 1044747), (33, 601521), (57, 348249), (61, 325413), (99, 200507), (171, 116083), (173, 114741), (183, 108471), (209, 94977), (519, 38247), (549, 36157), (627, 31659), (671, 29583), (1159, 17127), (1557, 12749), (1881, 10553), (1903, 10431), (2013, 9861), (3287, 6039), (3477, 5709)]