16919595

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{257}}^1$

素因数の和:305

約数の個数: 96

約数和(自身を含む): 38638080

約数和(自身を除く): 21718485

約数列:

[1, 3, 5, 7, 9, 11, 15, 19, 21, 33, 35, 45, 55, 57, 63, 77, 95, 99, 105, 133, 165, 171, 209, 231, 257, 285, 315, 385, 399, 495, 627, 665, 693, 771, 855, 1045, 1155, 1197, 1285, 1463, 1799, 1881, 1995, 2313, 2827, 3135, 3465, 3855, 4389, 4883, 5397, 5985, 7315, 8481, 8995, 9405, 11565, 13167, 14135, 14649, 16191, 19789, 21945, 24415, 25443, 26985, 34181, 42405, 43947, 53713, 59367, 65835, 73245, 80955, 98945, 102543, 127215, 161139, 170905, 178101, 219735, 268565, 296835, 307629, 375991, 483417, 512715, 805695, 890505, 1127973, 1538145, 1879955, 2417085, 3383919, 5639865, 16919595]

約数ペア:

[(1, 16919595), (3, 5639865), (5, 3383919), (7, 2417085), (9, 1879955), (11, 1538145), (15, 1127973), (19, 890505), (21, 805695), (33, 512715), (35, 483417), (45, 375991), (55, 307629), (57, 296835), (63, 268565), (77, 219735), (95, 178101), (99, 170905), (105, 161139), (133, 127215), (165, 102543), (171, 98945), (209, 80955), (231, 73245), (257, 65835), (285, 59367), (315, 53713), (385, 43947), (399, 42405), (495, 34181), (627, 26985), (665, 25443), (693, 24415), (771, 21945), (855, 19789), (1045, 16191), (1155, 14649), (1197, 14135), (1285, 13167), (1463, 11565), (1799, 9405), (1881, 8995), (1995, 8481), (2313, 7315), (2827, 5985), (3135, 5397), (3465, 4883), (3855, 4389)]