2019178665

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{31891}}^1$

素因数の和:31979

約数の個数: 64

約数和(自身を含む): 4163819520

約数和(自身を除く): 2144640855

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 67, 105, 135, 189, 201, 315, 335, 469, 603, 945, 1005, 1407, 1809, 2345, 3015, 4221, 7035, 9045, 12663, 21105, 31891, 63315, 95673, 159455, 223237, 287019, 478365, 669711, 861057, 1116185, 1435095, 2009133, 2136697, 3348555, 4305285, 6027399, 6410091, 10045665, 10683485, 14956879, 19230273, 30136995, 32050455, 44870637, 57690819, 74784395, 96151365, 134611911, 224353185, 288454095, 403835733, 673059555, 2019178665]

約数ペア:

[(1, 2019178665), (3, 673059555), (5, 403835733), (7, 288454095), (9, 224353185), (15, 134611911), (21, 96151365), (27, 74784395), (35, 57690819), (45, 44870637), (63, 32050455), (67, 30136995), (105, 19230273), (135, 14956879), (189, 10683485), (201, 10045665), (315, 6410091), (335, 6027399), (469, 4305285), (603, 3348555), (945, 2136697), (1005, 2009133), (1407, 1435095), (1809, 1116185), (2345, 861057), (3015, 669711), (4221, 478365), (7035, 287019), (9045, 223237), (12663, 159455), (21105, 95673), (31891, 63315)]