20298726

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:234

約数の個数: 96

約数和(自身を含む): 54163200

約数和(自身を除く): 33864474

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 19, 21, 38, 42, 57, 61, 63, 114, 122, 126, 133, 139, 171, 183, 266, 278, 342, 366, 399, 417, 427, 549, 798, 834, 854, 973, 1098, 1159, 1197, 1251, 1281, 1946, 2318, 2394, 2502, 2562, 2641, 2919, 3477, 3843, 5282, 5838, 6954, 7686, 7923, 8113, 8479, 8757, 10431, 15846, 16226, 16958, 17514, 18487, 20862, 23769, 24339, 25437, 36974, 47538, 48678, 50874, 55461, 59353, 73017, 76311, 110922, 118706, 146034, 152622, 161101, 166383, 178059, 322202, 332766, 356118, 483303, 534177, 966606, 1068354, 1127707, 1449909, 2255414, 2899818, 3383121, 6766242, 10149363, 20298726]

約数ペア:

[(1, 20298726), (2, 10149363), (3, 6766242), (6, 3383121), (7, 2899818), (9, 2255414), (14, 1449909), (18, 1127707), (19, 1068354), (21, 966606), (38, 534177), (42, 483303), (57, 356118), (61, 332766), (63, 322202), (114, 178059), (122, 166383), (126, 161101), (133, 152622), (139, 146034), (171, 118706), (183, 110922), (266, 76311), (278, 73017), (342, 59353), (366, 55461), (399, 50874), (417, 48678), (427, 47538), (549, 36974), (798, 25437), (834, 24339), (854, 23769), (973, 20862), (1098, 18487), (1159, 17514), (1197, 16958), (1251, 16226), (1281, 15846), (1946, 10431), (2318, 8757), (2394, 8479), (2502, 8113), (2562, 7923), (2641, 7686), (2919, 6954), (3477, 5838), (3843, 5282)]