20791368

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{229}}^1$

素因数の和:351

約数の個数: 96

約数和(自身を含む): 61534200

約数和(自身を除く): 40742832

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 97, 104, 117, 156, 194, 229, 234, 291, 312, 388, 458, 468, 582, 687, 776, 873, 916, 936, 1164, 1261, 1374, 1746, 1832, 2061, 2328, 2522, 2748, 2977, 3492, 3783, 4122, 5044, 5496, 5954, 6984, 7566, 8244, 8931, 10088, 11349, 11908, 15132, 16488, 17862, 22213, 22698, 23816, 26793, 30264, 35724, 44426, 45396, 53586, 66639, 71448, 88852, 90792, 107172, 133278, 177704, 199917, 214344, 266556, 288769, 399834, 533112, 577538, 799668, 866307, 1155076, 1599336, 1732614, 2310152, 2598921, 3465228, 5197842, 6930456, 10395684, 20791368]

約数ペア:

[(1, 20791368), (2, 10395684), (3, 6930456), (4, 5197842), (6, 3465228), (8, 2598921), (9, 2310152), (12, 1732614), (13, 1599336), (18, 1155076), (24, 866307), (26, 799668), (36, 577538), (39, 533112), (52, 399834), (72, 288769), (78, 266556), (97, 214344), (104, 199917), (117, 177704), (156, 133278), (194, 107172), (229, 90792), (234, 88852), (291, 71448), (312, 66639), (388, 53586), (458, 45396), (468, 44426), (582, 35724), (687, 30264), (776, 26793), (873, 23816), (916, 22698), (936, 22213), (1164, 17862), (1261, 16488), (1374, 15132), (1746, 11908), (1832, 11349), (2061, 10088), (2328, 8931), (2522, 8244), (2748, 7566), (2977, 6984), (3492, 5954), (3783, 5496), (4122, 5044)]