9819999

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{173}}^1$

素因数の和:256

約数の個数: 48

約数和(自身を含む): 17589312

約数和(自身を除く): 7769313

約数列:

[1, 3, 7, 9, 17, 21, 51, 53, 63, 119, 153, 159, 173, 357, 371, 477, 519, 901, 1071, 1113, 1211, 1557, 2703, 2941, 3339, 3633, 6307, 8109, 8823, 9169, 10899, 18921, 20587, 26469, 27507, 56763, 61761, 64183, 82521, 155873, 185283, 192549, 467619, 577647, 1091111, 1402857, 3273333, 9819999]

約数ペア:

[(1, 9819999), (3, 3273333), (7, 1402857), (9, 1091111), (17, 577647), (21, 467619), (51, 192549), (53, 185283), (63, 155873), (119, 82521), (153, 64183), (159, 61761), (173, 56763), (357, 27507), (371, 26469), (477, 20587), (519, 18921), (901, 10899), (1071, 9169), (1113, 8823), (1211, 8109), (1557, 6307), (2703, 3633), (2941, 3339)]