21968940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2753}}^1$

素因数の和:2791

約数の個数: 96

約数和(自身を含む): 74027520

約数和(自身を除く): 52058580

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 57, 60, 70, 76, 84, 95, 105, 114, 133, 140, 190, 210, 228, 266, 285, 380, 399, 420, 532, 570, 665, 798, 1140, 1330, 1596, 1995, 2660, 2753, 3990, 5506, 7980, 8259, 11012, 13765, 16518, 19271, 27530, 33036, 38542, 41295, 52307, 55060, 57813, 77084, 82590, 96355, 104614, 115626, 156921, 165180, 192710, 209228, 231252, 261535, 289065, 313842, 366149, 385420, 523070, 578130, 627684, 732298, 784605, 1046140, 1098447, 1156260, 1464596, 1569210, 1830745, 2196894, 3138420, 3661490, 4393788, 5492235, 7322980, 10984470, 21968940]

約数ペア:

[(1, 21968940), (2, 10984470), (3, 7322980), (4, 5492235), (5, 4393788), (6, 3661490), (7, 3138420), (10, 2196894), (12, 1830745), (14, 1569210), (15, 1464596), (19, 1156260), (20, 1098447), (21, 1046140), (28, 784605), (30, 732298), (35, 627684), (38, 578130), (42, 523070), (57, 385420), (60, 366149), (70, 313842), (76, 289065), (84, 261535), (95, 231252), (105, 209228), (114, 192710), (133, 165180), (140, 156921), (190, 115626), (210, 104614), (228, 96355), (266, 82590), (285, 77084), (380, 57813), (399, 55060), (420, 52307), (532, 41295), (570, 38542), (665, 33036), (798, 27530), (1140, 19271), (1330, 16518), (1596, 13765), (1995, 11012), (2660, 8259), (2753, 7980), (3990, 5506)]