218551473

素因数分解:

$3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{251}}^1\times {\mathrm{271}}^1$

素因数の和:555

約数の個数: 64

約数和(自身を含む): 394813440

約数和(自身を除く): 176261967

約数列:

[1, 3, 7, 9, 17, 21, 27, 51, 63, 119, 153, 189, 251, 271, 357, 459, 753, 813, 1071, 1757, 1897, 2259, 2439, 3213, 4267, 4607, 5271, 5691, 6777, 7317, 12801, 13821, 15813, 17073, 29869, 32249, 38403, 41463, 47439, 51219, 68021, 89607, 96747, 115209, 124389, 204063, 268821, 290241, 476147, 612189, 806463, 870723, 1156357, 1428441, 1836567, 3469071, 4285323, 8094499, 10407213, 12855969, 24283497, 31221639, 72850491, 218551473]

約数ペア:

[(1, 218551473), (3, 72850491), (7, 31221639), (9, 24283497), (17, 12855969), (21, 10407213), (27, 8094499), (51, 4285323), (63, 3469071), (119, 1836567), (153, 1428441), (189, 1156357), (251, 870723), (271, 806463), (357, 612189), (459, 476147), (753, 290241), (813, 268821), (1071, 204063), (1757, 124389), (1897, 115209), (2259, 96747), (2439, 89607), (3213, 68021), (4267, 51219), (4607, 47439), (5271, 41463), (5691, 38403), (6777, 32249), (7317, 29869), (12801, 17073), (13821, 15813)]