921761505

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{317}}^1$

素因数の和:536

約数の個数: 128

約数和(自身を含む): 2000194560

約数和(自身を除く): 1078433055

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 27, 35, 45, 51, 63, 85, 105, 119, 135, 153, 181, 189, 255, 315, 317, 357, 459, 543, 595, 765, 905, 945, 951, 1071, 1267, 1585, 1629, 1785, 2219, 2295, 2715, 2853, 3077, 3213, 3801, 4755, 4887, 5355, 5389, 6335, 6657, 8145, 8559, 9231, 11095, 11403, 14265, 15385, 16065, 16167, 19005, 19971, 21539, 24435, 26945, 27693, 33285, 34209, 37723, 42795, 46155, 48501, 57015, 57377, 59913, 64617, 80835, 83079, 99855, 107695, 113169, 138465, 145503, 171045, 172131, 188615, 193851, 242505, 286885, 299565, 323085, 339507, 401639, 415395, 516393, 565845, 581553, 727515, 860655, 969255, 975409, 1018521, 1204917, 1549179, 1697535, 2008195, 2581965, 2907765, 2926227, 3614751, 4877045, 5092605, 6024585, 6827863, 7745895, 8778681, 10844253, 14631135, 18073755, 20483589, 26336043, 34139315, 43893405, 54221265, 61450767, 102417945, 131680215, 184352301, 307253835, 921761505]

約数ペア:

[(1, 921761505), (3, 307253835), (5, 184352301), (7, 131680215), (9, 102417945), (15, 61450767), (17, 54221265), (21, 43893405), (27, 34139315), (35, 26336043), (45, 20483589), (51, 18073755), (63, 14631135), (85, 10844253), (105, 8778681), (119, 7745895), (135, 6827863), (153, 6024585), (181, 5092605), (189, 4877045), (255, 3614751), (315, 2926227), (317, 2907765), (357, 2581965), (459, 2008195), (543, 1697535), (595, 1549179), (765, 1204917), (905, 1018521), (945, 975409), (951, 969255), (1071, 860655), (1267, 727515), (1585, 581553), (1629, 565845), (1785, 516393), (2219, 415395), (2295, 401639), (2715, 339507), (2853, 323085), (3077, 299565), (3213, 286885), (3801, 242505), (4755, 193851), (4887, 188615), (5355, 172131), (5389, 171045), (6335, 145503), (6657, 138465), (8145, 113169), (8559, 107695), (9231, 99855), (11095, 83079), (11403, 80835), (14265, 64617), (15385, 59913), (16065, 57377), (16167, 57015), (19005, 48501), (19971, 46155), (21539, 42795), (24435, 37723), (26945, 34209), (27693, 33285)]