20865222

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{17}}^2\times {\mathrm{191}}^1$

素因数の和:243

約数の個数: 96

約数和(自身を含む): 56586240

約数和(自身を除く): 35721018

約数列:

[1, 2, 3, 6, 7, 9, 14, 17, 18, 21, 27, 34, 42, 51, 54, 63, 102, 119, 126, 153, 189, 191, 238, 289, 306, 357, 378, 382, 459, 573, 578, 714, 867, 918, 1071, 1146, 1337, 1719, 1734, 2023, 2142, 2601, 2674, 3213, 3247, 3438, 4011, 4046, 5157, 5202, 6069, 6426, 6494, 7803, 8022, 9741, 10314, 12033, 12138, 15606, 18207, 19482, 22729, 24066, 29223, 36099, 36414, 45458, 54621, 55199, 58446, 68187, 72198, 87669, 109242, 110398, 136374, 165597, 175338, 204561, 331194, 386393, 409122, 496791, 613683, 772786, 993582, 1159179, 1227366, 1490373, 2318358, 2980746, 3477537, 6955074, 10432611, 20865222]

約数ペア:

[(1, 20865222), (2, 10432611), (3, 6955074), (6, 3477537), (7, 2980746), (9, 2318358), (14, 1490373), (17, 1227366), (18, 1159179), (21, 993582), (27, 772786), (34, 613683), (42, 496791), (51, 409122), (54, 386393), (63, 331194), (102, 204561), (119, 175338), (126, 165597), (153, 136374), (189, 110398), (191, 109242), (238, 87669), (289, 72198), (306, 68187), (357, 58446), (378, 55199), (382, 54621), (459, 45458), (573, 36414), (578, 36099), (714, 29223), (867, 24066), (918, 22729), (1071, 19482), (1146, 18207), (1337, 15606), (1719, 12138), (1734, 12033), (2023, 10314), (2142, 9741), (2601, 8022), (2674, 7803), (3213, 6494), (3247, 6426), (3438, 6069), (4011, 5202), (4046, 5157)]