19828732

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{541}}^1$

素因数の和:587

約数の個数: 72

約数和(自身を含む): 46711728

約数和(自身を除く): 26882996

約数列:

[1, 2, 4, 7, 11, 14, 17, 22, 28, 34, 44, 49, 68, 77, 98, 119, 154, 187, 196, 238, 308, 374, 476, 539, 541, 748, 833, 1078, 1082, 1309, 1666, 2156, 2164, 2618, 3332, 3787, 5236, 5951, 7574, 9163, 9197, 11902, 15148, 18326, 18394, 23804, 26509, 36652, 36788, 41657, 53018, 64379, 83314, 101167, 106036, 128758, 166628, 202334, 257516, 291599, 404668, 450653, 583198, 708169, 901306, 1166396, 1416338, 1802612, 2832676, 4957183, 9914366, 19828732]

約数ペア:

[(1, 19828732), (2, 9914366), (4, 4957183), (7, 2832676), (11, 1802612), (14, 1416338), (17, 1166396), (22, 901306), (28, 708169), (34, 583198), (44, 450653), (49, 404668), (68, 291599), (77, 257516), (98, 202334), (119, 166628), (154, 128758), (187, 106036), (196, 101167), (238, 83314), (308, 64379), (374, 53018), (476, 41657), (539, 36788), (541, 36652), (748, 26509), (833, 23804), (1078, 18394), (1082, 18326), (1309, 15148), (1666, 11902), (2156, 9197), (2164, 9163), (2618, 7574), (3332, 5951), (3787, 5236)]