21490992

素因数分解:

$2^4\times 3^2\times {\mathrm{17}}^1\times {\mathrm{8779}}^1$

素因数の和:8810

約数の個数: 60

約数和(自身を含む): 63690120

約数和(自身を除く): 42199128

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 17, 18, 24, 34, 36, 48, 51, 68, 72, 102, 136, 144, 153, 204, 272, 306, 408, 612, 816, 1224, 2448, 8779, 17558, 26337, 35116, 52674, 70232, 79011, 105348, 140464, 149243, 158022, 210696, 298486, 316044, 421392, 447729, 596972, 632088, 895458, 1193944, 1264176, 1343187, 1790916, 2387888, 2686374, 3581832, 5372748, 7163664, 10745496, 21490992]

約数ペア:

[(1, 21490992), (2, 10745496), (3, 7163664), (4, 5372748), (6, 3581832), (8, 2686374), (9, 2387888), (12, 1790916), (16, 1343187), (17, 1264176), (18, 1193944), (24, 895458), (34, 632088), (36, 596972), (48, 447729), (51, 421392), (68, 316044), (72, 298486), (102, 210696), (136, 158022), (144, 149243), (153, 140464), (204, 105348), (272, 79011), (306, 70232), (408, 52674), (612, 35116), (816, 26337), (1224, 17558), (2448, 8779)]