71622369

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^2\times {\mathrm{31}}^2$

素因数の和:108

約数の個数: 81

約数和(自身を含む): 134653779

約数和(自身を除く): 63031410

約数列:

[1, 3, 7, 9, 13, 21, 31, 39, 49, 63, 91, 93, 117, 147, 169, 217, 273, 279, 403, 441, 507, 637, 651, 819, 961, 1183, 1209, 1519, 1521, 1911, 1953, 2821, 2883, 3549, 3627, 4557, 5239, 5733, 6727, 8281, 8463, 8649, 10647, 12493, 13671, 15717, 19747, 20181, 24843, 25389, 36673, 37479, 47089, 47151, 59241, 60543, 74529, 87451, 110019, 112437, 141267, 162409, 177723, 256711, 262353, 330057, 423801, 487227, 612157, 770133, 787059, 1136863, 1461681, 1836471, 2310399, 3410589, 5509413, 7958041, 10231767, 23874123, 71622369]

約数ペア:

[(1, 71622369), (3, 23874123), (7, 10231767), (9, 7958041), (13, 5509413), (21, 3410589), (31, 2310399), (39, 1836471), (49, 1461681), (63, 1136863), (91, 787059), (93, 770133), (117, 612157), (147, 487227), (169, 423801), (217, 330057), (273, 262353), (279, 256711), (403, 177723), (441, 162409), (507, 141267), (637, 112437), (651, 110019), (819, 87451), (961, 74529), (1183, 60543), (1209, 59241), (1519, 47151), (1521, 47089), (1911, 37479), (1953, 36673), (2821, 25389), (2883, 24843), (3549, 20181), (3627, 19747), (4557, 15717), (5239, 13671), (5733, 12493), (6727, 10647), (8281, 8649)]