21391150488

素因数分解:

$2^3\times 3^1\times {\mathrm{43}}^1\times {\mathrm{337}}^1\times {\mathrm{61507}}^1$

素因数の和:61896

約数の個数: 64

約数和(自身を含む): 54884818560

約数和(自身を除く): 33493668072

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 43, 86, 129, 172, 258, 337, 344, 516, 674, 1011, 1032, 1348, 2022, 2696, 4044, 8088, 14491, 28982, 43473, 57964, 61507, 86946, 115928, 123014, 173892, 184521, 246028, 347784, 369042, 492056, 738084, 1476168, 2644801, 5289602, 7934403, 10579204, 15868806, 20727859, 21158408, 31737612, 41455718, 62183577, 63475224, 82911436, 124367154, 165822872, 248734308, 497468616, 891297937, 1782595874, 2673893811, 3565191748, 5347787622, 7130383496, 10695575244, 21391150488]

約数ペア:

[(1, 21391150488), (2, 10695575244), (3, 7130383496), (4, 5347787622), (6, 3565191748), (8, 2673893811), (12, 1782595874), (24, 891297937), (43, 497468616), (86, 248734308), (129, 165822872), (172, 124367154), (258, 82911436), (337, 63475224), (344, 62183577), (516, 41455718), (674, 31737612), (1011, 21158408), (1032, 20727859), (1348, 15868806), (2022, 10579204), (2696, 7934403), (4044, 5289602), (8088, 2644801), (14491, 1476168), (28982, 738084), (43473, 492056), (57964, 369042), (61507, 347784), (86946, 246028), (115928, 184521), (123014, 173892)]