21495650

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:81

約数の個数: 96

約数和(自身を含む): 49014720

約数和(自身を除く): 27519070

約数列:

[1, 2, 5, 10, 11, 17, 19, 22, 25, 34, 38, 50, 55, 85, 95, 110, 121, 170, 187, 190, 209, 242, 275, 323, 374, 418, 425, 475, 550, 605, 646, 850, 935, 950, 1045, 1210, 1331, 1615, 1870, 2057, 2090, 2299, 2662, 3025, 3230, 3553, 4114, 4598, 4675, 5225, 6050, 6655, 7106, 8075, 9350, 10285, 10450, 11495, 13310, 16150, 17765, 20570, 22627, 22990, 25289, 33275, 35530, 39083, 45254, 50578, 51425, 57475, 66550, 78166, 88825, 102850, 113135, 114950, 126445, 177650, 195415, 226270, 252890, 390830, 429913, 565675, 632225, 859826, 977075, 1131350, 1264450, 1954150, 2149565, 4299130, 10747825, 21495650]

約数ペア:

[(1, 21495650), (2, 10747825), (5, 4299130), (10, 2149565), (11, 1954150), (17, 1264450), (19, 1131350), (22, 977075), (25, 859826), (34, 632225), (38, 565675), (50, 429913), (55, 390830), (85, 252890), (95, 226270), (110, 195415), (121, 177650), (170, 126445), (187, 114950), (190, 113135), (209, 102850), (242, 88825), (275, 78166), (323, 66550), (374, 57475), (418, 51425), (425, 50578), (475, 45254), (550, 39083), (605, 35530), (646, 33275), (850, 25289), (935, 22990), (950, 22627), (1045, 20570), (1210, 17765), (1331, 16150), (1615, 13310), (1870, 11495), (2057, 10450), (2090, 10285), (2299, 9350), (2662, 8075), (3025, 7106), (3230, 6655), (3553, 6050), (4114, 5225), (4598, 4675)]