19179825

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{307}}^1$

素因数の和:351

約数の個数: 72

約数和(自身を含む): 39184992

約数和(自身を除く): 20005167

約数列:

[1, 3, 5, 7, 15, 17, 21, 25, 35, 49, 51, 75, 85, 105, 119, 147, 175, 245, 255, 307, 357, 425, 525, 595, 735, 833, 921, 1225, 1275, 1535, 1785, 2149, 2499, 2975, 3675, 4165, 4605, 5219, 6447, 7675, 8925, 10745, 12495, 15043, 15657, 20825, 23025, 26095, 32235, 36533, 45129, 53725, 62475, 75215, 78285, 109599, 130475, 161175, 182665, 225645, 255731, 376075, 391425, 547995, 767193, 913325, 1128225, 1278655, 2739975, 3835965, 6393275, 19179825]

約数ペア:

[(1, 19179825), (3, 6393275), (5, 3835965), (7, 2739975), (15, 1278655), (17, 1128225), (21, 913325), (25, 767193), (35, 547995), (49, 391425), (51, 376075), (75, 255731), (85, 225645), (105, 182665), (119, 161175), (147, 130475), (175, 109599), (245, 78285), (255, 75215), (307, 62475), (357, 53725), (425, 45129), (525, 36533), (595, 32235), (735, 26095), (833, 23025), (921, 20825), (1225, 15657), (1275, 15043), (1535, 12495), (1785, 10745), (2149, 8925), (2499, 7675), (2975, 6447), (3675, 5219), (4165, 4605)]