20385834

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{109}}^1$

素因数の和:255

約数の個数: 64

約数和(自身を含む): 48449280

約数和(自身を除く): 28063446

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 61, 73, 109, 122, 146, 183, 218, 219, 327, 366, 427, 438, 511, 654, 763, 854, 1022, 1281, 1526, 1533, 2289, 2562, 3066, 4453, 4578, 6649, 7957, 8906, 13298, 13359, 15914, 19947, 23871, 26718, 31171, 39894, 46543, 47742, 55699, 62342, 93086, 93513, 111398, 139629, 167097, 187026, 279258, 334194, 485377, 970754, 1456131, 2912262, 3397639, 6795278, 10192917, 20385834]

約数ペア:

[(1, 20385834), (2, 10192917), (3, 6795278), (6, 3397639), (7, 2912262), (14, 1456131), (21, 970754), (42, 485377), (61, 334194), (73, 279258), (109, 187026), (122, 167097), (146, 139629), (183, 111398), (218, 93513), (219, 93086), (327, 62342), (366, 55699), (427, 47742), (438, 46543), (511, 39894), (654, 31171), (763, 26718), (854, 23871), (1022, 19947), (1281, 15914), (1526, 13359), (1533, 13298), (2289, 8906), (2562, 7957), (3066, 6649), (4453, 4578)]