19982538

素因数分解:

$2^1\times 3^4\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1$

素因数の和:241

約数の個数: 80

約数和(自身を含む): 48508416

約数和(自身を除く): 28525878

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 31, 46, 54, 62, 69, 81, 93, 138, 162, 173, 186, 207, 279, 346, 414, 519, 558, 621, 713, 837, 1038, 1242, 1426, 1557, 1674, 1863, 2139, 2511, 3114, 3726, 3979, 4278, 4671, 5022, 5363, 6417, 7958, 9342, 10726, 11937, 12834, 14013, 16089, 19251, 23874, 28026, 32178, 35811, 38502, 48267, 57753, 71622, 96534, 107433, 115506, 123349, 144801, 214866, 246698, 289602, 322299, 370047, 434403, 644598, 740094, 868806, 1110141, 2220282, 3330423, 6660846, 9991269, 19982538]

約数ペア:

[(1, 19982538), (2, 9991269), (3, 6660846), (6, 3330423), (9, 2220282), (18, 1110141), (23, 868806), (27, 740094), (31, 644598), (46, 434403), (54, 370047), (62, 322299), (69, 289602), (81, 246698), (93, 214866), (138, 144801), (162, 123349), (173, 115506), (186, 107433), (207, 96534), (279, 71622), (346, 57753), (414, 48267), (519, 38502), (558, 35811), (621, 32178), (713, 28026), (837, 23874), (1038, 19251), (1242, 16089), (1426, 14013), (1557, 12834), (1674, 11937), (1863, 10726), (2139, 9342), (2511, 7958), (3114, 6417), (3726, 5363), (3979, 5022), (4278, 4671)]