19918368

素因数分解:

$2^5\times 3^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1$

素因数の和:167

約数の個数: 144

約数和(自身を含む): 61641216

約数和(自身を除く): 41722848

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 31, 32, 36, 46, 48, 62, 69, 72, 92, 93, 96, 97, 124, 138, 144, 184, 186, 194, 207, 248, 276, 279, 288, 291, 368, 372, 388, 414, 496, 552, 558, 582, 713, 736, 744, 776, 828, 873, 992, 1104, 1116, 1164, 1426, 1488, 1552, 1656, 1746, 2139, 2208, 2231, 2232, 2328, 2852, 2976, 3007, 3104, 3312, 3492, 4278, 4462, 4464, 4656, 5704, 6014, 6417, 6624, 6693, 6984, 8556, 8924, 8928, 9021, 9312, 11408, 12028, 12834, 13386, 13968, 17112, 17848, 18042, 20079, 22816, 24056, 25668, 26772, 27063, 27936, 34224, 35696, 36084, 40158, 48112, 51336, 53544, 54126, 68448, 69161, 71392, 72168, 80316, 96224, 102672, 107088, 108252, 138322, 144336, 160632, 205344, 207483, 214176, 216504, 276644, 288672, 321264, 414966, 433008, 553288, 622449, 642528, 829932, 866016, 1106576, 1244898, 1659864, 2213152, 2489796, 3319728, 4979592, 6639456, 9959184, 19918368]

約数ペア:

[(1, 19918368), (2, 9959184), (3, 6639456), (4, 4979592), (6, 3319728), (8, 2489796), (9, 2213152), (12, 1659864), (16, 1244898), (18, 1106576), (23, 866016), (24, 829932), (31, 642528), (32, 622449), (36, 553288), (46, 433008), (48, 414966), (62, 321264), (69, 288672), (72, 276644), (92, 216504), (93, 214176), (96, 207483), (97, 205344), (124, 160632), (138, 144336), (144, 138322), (184, 108252), (186, 107088), (194, 102672), (207, 96224), (248, 80316), (276, 72168), (279, 71392), (288, 69161), (291, 68448), (368, 54126), (372, 53544), (388, 51336), (414, 48112), (496, 40158), (552, 36084), (558, 35696), (582, 34224), (713, 27936), (736, 27063), (744, 26772), (776, 25668), (828, 24056), (873, 22816), (992, 20079), (1104, 18042), (1116, 17848), (1164, 17112), (1426, 13968), (1488, 13386), (1552, 12834), (1656, 12028), (1746, 11408), (2139, 9312), (2208, 9021), (2231, 8928), (2232, 8924), (2328, 8556), (2852, 6984), (2976, 6693), (3007, 6624), (3104, 6417), (3312, 6014), (3492, 5704), (4278, 4656), (4462, 4464)]