291235857

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{307}}^1$

素因数の和:446

約数の個数: 64

約数和(自身を含む): 479001600

約数和(自身を除く): 187765743

約数列:

[1, 3, 11, 17, 19, 33, 51, 57, 89, 187, 209, 267, 307, 323, 561, 627, 921, 969, 979, 1513, 1691, 2937, 3377, 3553, 4539, 5073, 5219, 5833, 10131, 10659, 15657, 16643, 17499, 18601, 27323, 28747, 49929, 55803, 57409, 64163, 81969, 86241, 99161, 172227, 192489, 297483, 300553, 316217, 464491, 519137, 901659, 948651, 1090771, 1393473, 1557411, 3272313, 5109401, 5710507, 8825329, 15328203, 17131521, 26475987, 97078619, 291235857]

約数ペア:

[(1, 291235857), (3, 97078619), (11, 26475987), (17, 17131521), (19, 15328203), (33, 8825329), (51, 5710507), (57, 5109401), (89, 3272313), (187, 1557411), (209, 1393473), (267, 1090771), (307, 948651), (323, 901659), (561, 519137), (627, 464491), (921, 316217), (969, 300553), (979, 297483), (1513, 192489), (1691, 172227), (2937, 99161), (3377, 86241), (3553, 81969), (4539, 64163), (5073, 57409), (5219, 55803), (5833, 49929), (10131, 28747), (10659, 27323), (15657, 18601), (16643, 17499)]