21261870

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{33749}}^1$

素因数の和:33769

約数の個数: 48

約数和(自身を含む): 63180000

約数和(自身を除く): 41918130

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 33749, 67498, 101247, 168745, 202494, 236243, 303741, 337490, 472486, 506235, 607482, 708729, 1012470, 1181215, 1417458, 1518705, 2126187, 2362430, 3037410, 3543645, 4252374, 7087290, 10630935, 21261870]

約数ペア:

[(1, 21261870), (2, 10630935), (3, 7087290), (5, 4252374), (6, 3543645), (7, 3037410), (9, 2362430), (10, 2126187), (14, 1518705), (15, 1417458), (18, 1181215), (21, 1012470), (30, 708729), (35, 607482), (42, 506235), (45, 472486), (63, 337490), (70, 303741), (90, 236243), (105, 202494), (126, 168745), (210, 101247), (315, 67498), (630, 33749)]