20178091521

素因数分解:

$3^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{193}}^1\times {\mathrm{8017}}^1$

素因数の和:8252

約数の個数: 80

約数和(自身を含む): 36137190144

約数和(自身を除く): 15959098623

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 81, 161, 189, 193, 207, 483, 567, 579, 621, 1351, 1449, 1737, 1863, 4053, 4347, 4439, 5211, 8017, 12159, 13041, 13317, 15633, 24051, 31073, 36477, 39951, 56119, 72153, 93219, 109431, 119853, 168357, 184391, 216459, 279657, 359559, 505071, 553173, 649377, 838971, 1290737, 1515213, 1547281, 1659519, 2516913, 3872211, 4545639, 4641843, 4978557, 10830967, 11616633, 13925529, 14935671, 32492901, 34849899, 35587463, 41776587, 97478703, 104549697, 106762389, 125329761, 249112241, 292436109, 320287167, 747336723, 877308327, 960861501, 2242010169, 2882584503, 6726030507, 20178091521]

約数ペア:

[(1, 20178091521), (3, 6726030507), (7, 2882584503), (9, 2242010169), (21, 960861501), (23, 877308327), (27, 747336723), (63, 320287167), (69, 292436109), (81, 249112241), (161, 125329761), (189, 106762389), (193, 104549697), (207, 97478703), (483, 41776587), (567, 35587463), (579, 34849899), (621, 32492901), (1351, 14935671), (1449, 13925529), (1737, 11616633), (1863, 10830967), (4053, 4978557), (4347, 4641843), (4439, 4545639), (5211, 3872211), (8017, 2516913), (12159, 1659519), (13041, 1547281), (13317, 1515213), (15633, 1290737), (24051, 838971), (31073, 649377), (36477, 553173), (39951, 505071), (56119, 359559), (72153, 279657), (93219, 216459), (109431, 184391), (119853, 168357)]