21401160

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{523}}^1$

素因数の和:579

約数の個数: 128

約数和(自身を含む): 72437760

約数和(自身を除く): 51036600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 31, 33, 40, 44, 55, 60, 62, 66, 88, 93, 110, 120, 124, 132, 155, 165, 186, 220, 248, 264, 310, 330, 341, 372, 440, 465, 523, 620, 660, 682, 744, 930, 1023, 1046, 1240, 1320, 1364, 1569, 1705, 1860, 2046, 2092, 2615, 2728, 3138, 3410, 3720, 4092, 4184, 5115, 5230, 5753, 6276, 6820, 7845, 8184, 10230, 10460, 11506, 12552, 13640, 15690, 16213, 17259, 20460, 20920, 23012, 28765, 31380, 32426, 34518, 40920, 46024, 48639, 57530, 62760, 64852, 69036, 81065, 86295, 97278, 115060, 129704, 138072, 162130, 172590, 178343, 194556, 230120, 243195, 324260, 345180, 356686, 389112, 486390, 535029, 648520, 690360, 713372, 891715, 972780, 1070058, 1426744, 1783430, 1945560, 2140116, 2675145, 3566860, 4280232, 5350290, 7133720, 10700580, 21401160]

約数ペア:

[(1, 21401160), (2, 10700580), (3, 7133720), (4, 5350290), (5, 4280232), (6, 3566860), (8, 2675145), (10, 2140116), (11, 1945560), (12, 1783430), (15, 1426744), (20, 1070058), (22, 972780), (24, 891715), (30, 713372), (31, 690360), (33, 648520), (40, 535029), (44, 486390), (55, 389112), (60, 356686), (62, 345180), (66, 324260), (88, 243195), (93, 230120), (110, 194556), (120, 178343), (124, 172590), (132, 162130), (155, 138072), (165, 129704), (186, 115060), (220, 97278), (248, 86295), (264, 81065), (310, 69036), (330, 64852), (341, 62760), (372, 57530), (440, 48639), (465, 46024), (523, 40920), (620, 34518), (660, 32426), (682, 31380), (744, 28765), (930, 23012), (1023, 20920), (1046, 20460), (1240, 17259), (1320, 16213), (1364, 15690), (1569, 13640), (1705, 12552), (1860, 11506), (2046, 10460), (2092, 10230), (2615, 8184), (2728, 7845), (3138, 6820), (3410, 6276), (3720, 5753), (4092, 5230), (4184, 5115)]