216217917

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{6827}}^1$

素因数の和:6879

約数の個数: 40

約数和(自身を含む): 356913216

約数和(自身を除く): 140695299

約数列:

[1, 3, 9, 17, 23, 27, 51, 69, 81, 153, 207, 391, 459, 621, 1173, 1377, 1863, 3519, 6827, 10557, 20481, 31671, 61443, 116059, 157021, 184329, 348177, 471063, 552987, 1044531, 1413189, 2669357, 3133593, 4239567, 8008071, 9400779, 12718701, 24024213, 72072639, 216217917]

約数ペア:

[(1, 216217917), (3, 72072639), (9, 24024213), (17, 12718701), (23, 9400779), (27, 8008071), (51, 4239567), (69, 3133593), (81, 2669357), (153, 1413189), (207, 1044531), (391, 552987), (459, 471063), (621, 348177), (1173, 184329), (1377, 157021), (1863, 116059), (3519, 61443), (6827, 31671), (10557, 20481)]