18979916956

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{677177}}^1$

素因数の和:677219

約数の個数: 72

約数和(自身を含む): 45392595696

約数和(自身を除く): 26412678740

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 49, 52, 77, 91, 98, 143, 154, 182, 196, 286, 308, 364, 539, 572, 637, 1001, 1078, 1274, 2002, 2156, 2548, 4004, 7007, 14014, 28028, 677177, 1354354, 2708708, 4740239, 7448947, 8803301, 9480478, 14897894, 17606602, 18960956, 29795788, 33181673, 35213204, 52142629, 61623107, 66363346, 96836311, 104285258, 123246214, 132726692, 193672622, 208570516, 246492428, 364998403, 387345244, 431361749, 677854177, 729996806, 862723498, 1355708354, 1459993612, 1725446996, 2711416708, 4744979239, 9489958478, 18979916956]

約数ペア:

[(1, 18979916956), (2, 9489958478), (4, 4744979239), (7, 2711416708), (11, 1725446996), (13, 1459993612), (14, 1355708354), (22, 862723498), (26, 729996806), (28, 677854177), (44, 431361749), (49, 387345244), (52, 364998403), (77, 246492428), (91, 208570516), (98, 193672622), (143, 132726692), (154, 123246214), (182, 104285258), (196, 96836311), (286, 66363346), (308, 61623107), (364, 52142629), (539, 35213204), (572, 33181673), (637, 29795788), (1001, 18960956), (1078, 17606602), (1274, 14897894), (2002, 9480478), (2156, 8803301), (2548, 7448947), (4004, 4740239), (7007, 2708708), (14014, 1354354), (28028, 677177)]