19996488

素因数分解:

$2^3\times 3^2\times {\mathrm{17}}^2\times {\mathrm{31}}^2$

素因数の和:108

約数の個数: 108

約数和(自身を含む): 59445945

約数和(自身を除く): 39449457

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 17, 18, 24, 31, 34, 36, 51, 62, 68, 72, 93, 102, 124, 136, 153, 186, 204, 248, 279, 289, 306, 372, 408, 527, 558, 578, 612, 744, 867, 961, 1054, 1116, 1156, 1224, 1581, 1734, 1922, 2108, 2232, 2312, 2601, 2883, 3162, 3468, 3844, 4216, 4743, 5202, 5766, 6324, 6936, 7688, 8649, 8959, 9486, 10404, 11532, 12648, 16337, 17298, 17918, 18972, 20808, 23064, 26877, 32674, 34596, 35836, 37944, 49011, 53754, 65348, 69192, 71672, 80631, 98022, 107508, 130696, 147033, 161262, 196044, 215016, 277729, 294066, 322524, 392088, 555458, 588132, 645048, 833187, 1110916, 1176264, 1666374, 2221832, 2499561, 3332748, 4999122, 6665496, 9998244, 19996488]

約数ペア:

[(1, 19996488), (2, 9998244), (3, 6665496), (4, 4999122), (6, 3332748), (8, 2499561), (9, 2221832), (12, 1666374), (17, 1176264), (18, 1110916), (24, 833187), (31, 645048), (34, 588132), (36, 555458), (51, 392088), (62, 322524), (68, 294066), (72, 277729), (93, 215016), (102, 196044), (124, 161262), (136, 147033), (153, 130696), (186, 107508), (204, 98022), (248, 80631), (279, 71672), (289, 69192), (306, 65348), (372, 53754), (408, 49011), (527, 37944), (558, 35836), (578, 34596), (612, 32674), (744, 26877), (867, 23064), (961, 20808), (1054, 18972), (1116, 17918), (1156, 17298), (1224, 16337), (1581, 12648), (1734, 11532), (1922, 10404), (2108, 9486), (2232, 8959), (2312, 8649), (2601, 7688), (2883, 6936), (3162, 6324), (3468, 5766), (3844, 5202), (4216, 4743)]