19701216

素因数分解:

$2^5\times 3^2\times {\mathrm{67}}^1\times {\mathrm{1021}}^1$

素因数の和:1104

約数の個数: 72

約数和(自身を含む): 56917224

約数和(自身を除く): 37216008

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 67, 72, 96, 134, 144, 201, 268, 288, 402, 536, 603, 804, 1021, 1072, 1206, 1608, 2042, 2144, 2412, 3063, 3216, 4084, 4824, 6126, 6432, 8168, 9189, 9648, 12252, 16336, 18378, 19296, 24504, 32672, 36756, 49008, 68407, 73512, 98016, 136814, 147024, 205221, 273628, 294048, 410442, 547256, 615663, 820884, 1094512, 1231326, 1641768, 2189024, 2462652, 3283536, 4925304, 6567072, 9850608, 19701216]

約数ペア:

[(1, 19701216), (2, 9850608), (3, 6567072), (4, 4925304), (6, 3283536), (8, 2462652), (9, 2189024), (12, 1641768), (16, 1231326), (18, 1094512), (24, 820884), (32, 615663), (36, 547256), (48, 410442), (67, 294048), (72, 273628), (96, 205221), (134, 147024), (144, 136814), (201, 98016), (268, 73512), (288, 68407), (402, 49008), (536, 36756), (603, 32672), (804, 24504), (1021, 19296), (1072, 18378), (1206, 16336), (1608, 12252), (2042, 9648), (2144, 9189), (2412, 8168), (3063, 6432), (3216, 6126), (4084, 4824)]