21531300

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{10253}}^1$

素因数の和:10277

約数の個数: 72

約数和(自身を含む): 71203776

約数和(自身を除く): 49672476

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 50, 60, 70, 75, 84, 100, 105, 140, 150, 175, 210, 300, 350, 420, 525, 700, 1050, 2100, 10253, 20506, 30759, 41012, 51265, 61518, 71771, 102530, 123036, 143542, 153795, 205060, 215313, 256325, 287084, 307590, 358855, 430626, 512650, 615180, 717710, 768975, 861252, 1025300, 1076565, 1435420, 1537950, 1794275, 2153130, 3075900, 3588550, 4306260, 5382825, 7177100, 10765650, 21531300]

約数ペア:

[(1, 21531300), (2, 10765650), (3, 7177100), (4, 5382825), (5, 4306260), (6, 3588550), (7, 3075900), (10, 2153130), (12, 1794275), (14, 1537950), (15, 1435420), (20, 1076565), (21, 1025300), (25, 861252), (28, 768975), (30, 717710), (35, 615180), (42, 512650), (50, 430626), (60, 358855), (70, 307590), (75, 287084), (84, 256325), (100, 215313), (105, 205060), (140, 153795), (150, 143542), (175, 123036), (210, 102530), (300, 71771), (350, 61518), (420, 51265), (525, 41012), (700, 30759), (1050, 20506), (2100, 10253)]