21253512

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{1733}}^1$

素因数の和:1822

約数の個数: 64

約数和(自身を含む): 61591680

約数和(自身を除く): 40338168

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 73, 84, 146, 168, 219, 292, 438, 511, 584, 876, 1022, 1533, 1733, 1752, 2044, 3066, 3466, 4088, 5199, 6132, 6932, 10398, 12131, 12264, 13864, 20796, 24262, 36393, 41592, 48524, 72786, 97048, 126509, 145572, 253018, 291144, 379527, 506036, 759054, 885563, 1012072, 1518108, 1771126, 2656689, 3036216, 3542252, 5313378, 7084504, 10626756, 21253512]

約数ペア:

[(1, 21253512), (2, 10626756), (3, 7084504), (4, 5313378), (6, 3542252), (7, 3036216), (8, 2656689), (12, 1771126), (14, 1518108), (21, 1012072), (24, 885563), (28, 759054), (42, 506036), (56, 379527), (73, 291144), (84, 253018), (146, 145572), (168, 126509), (219, 97048), (292, 72786), (438, 48524), (511, 41592), (584, 36393), (876, 24262), (1022, 20796), (1533, 13864), (1733, 12264), (1752, 12131), (2044, 10398), (3066, 6932), (3466, 6132), (4088, 5199)]