20921375618

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{191}}^1\times {\mathrm{1733}}^1$

素因数の和:1980

約数の個数: 96

約数和(自身を含む): 39479933952

約数和(自身を除く): 18558558334

約数列:

[1, 2, 11, 13, 17, 22, 26, 34, 143, 169, 187, 191, 221, 286, 338, 374, 382, 442, 1733, 1859, 2101, 2431, 2483, 2873, 3247, 3466, 3718, 4202, 4862, 4966, 5746, 6494, 19063, 22529, 27313, 29461, 31603, 32279, 35717, 38126, 42211, 45058, 54626, 58922, 63206, 64558, 71434, 84422, 247819, 292877, 324071, 331003, 355069, 382993, 464321, 495638, 548743, 585754, 648142, 662006, 710138, 765986, 928642, 1097486, 3221647, 3641033, 4212923, 4303039, 4978909, 5627051, 6036173, 6443294, 7282066, 8425846, 8606078, 9957818, 11254102, 12072346, 47333429, 54767999, 55939507, 61897561, 73151663, 94666858, 109535998, 111879014, 123795122, 146303326, 615334577, 804668293, 950971619, 1230669154, 1609336586, 1901943238, 10460687809, 20921375618]

約数ペア:

[(1, 20921375618), (2, 10460687809), (11, 1901943238), (13, 1609336586), (17, 1230669154), (22, 950971619), (26, 804668293), (34, 615334577), (143, 146303326), (169, 123795122), (187, 111879014), (191, 109535998), (221, 94666858), (286, 73151663), (338, 61897561), (374, 55939507), (382, 54767999), (442, 47333429), (1733, 12072346), (1859, 11254102), (2101, 9957818), (2431, 8606078), (2483, 8425846), (2873, 7282066), (3247, 6443294), (3466, 6036173), (3718, 5627051), (4202, 4978909), (4862, 4303039), (4966, 4212923), (5746, 3641033), (6494, 3221647), (19063, 1097486), (22529, 928642), (27313, 765986), (29461, 710138), (31603, 662006), (32279, 648142), (35717, 585754), (38126, 548743), (42211, 495638), (45058, 464321), (54626, 382993), (58922, 355069), (63206, 331003), (64558, 324071), (71434, 292877), (84422, 247819)]