21007980084

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{479}}^1\times {\mathrm{40163}}^1$

素因数の和:40669

約数の個数: 96

約数和(自身を含む): 60458065920

約数和(自身を除く): 39450085836

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 52, 78, 84, 91, 156, 182, 273, 364, 479, 546, 958, 1092, 1437, 1916, 2874, 3353, 5748, 6227, 6706, 10059, 12454, 13412, 18681, 20118, 24908, 37362, 40163, 40236, 43589, 74724, 80326, 87178, 120489, 130767, 160652, 174356, 240978, 261534, 281141, 481956, 522119, 523068, 562282, 843423, 1044238, 1124564, 1566357, 1686846, 2088476, 3132714, 3373692, 3654833, 6265428, 7309666, 10964499, 14619332, 19238077, 21928998, 38476154, 43857996, 57714231, 76952308, 115428462, 134666539, 230856924, 250095001, 269333078, 403999617, 500190002, 538666156, 750285003, 807999234, 1000380004, 1500570006, 1615998468, 1750665007, 3001140012, 3501330014, 5251995021, 7002660028, 10503990042, 21007980084]

約数ペア:

[(1, 21007980084), (2, 10503990042), (3, 7002660028), (4, 5251995021), (6, 3501330014), (7, 3001140012), (12, 1750665007), (13, 1615998468), (14, 1500570006), (21, 1000380004), (26, 807999234), (28, 750285003), (39, 538666156), (42, 500190002), (52, 403999617), (78, 269333078), (84, 250095001), (91, 230856924), (156, 134666539), (182, 115428462), (273, 76952308), (364, 57714231), (479, 43857996), (546, 38476154), (958, 21928998), (1092, 19238077), (1437, 14619332), (1916, 10964499), (2874, 7309666), (3353, 6265428), (5748, 3654833), (6227, 3373692), (6706, 3132714), (10059, 2088476), (12454, 1686846), (13412, 1566357), (18681, 1124564), (20118, 1044238), (24908, 843423), (37362, 562282), (40163, 523068), (40236, 522119), (43589, 481956), (74724, 281141), (80326, 261534), (87178, 240978), (120489, 174356), (130767, 160652)]