21305130

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{401}}^1$

素因数の和:452

約数の個数: 128

約数和(自身を含む): 66686976

約数和(自身を除く): 45381846

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 14, 15, 21, 22, 23, 30, 33, 35, 42, 46, 55, 66, 69, 70, 77, 105, 110, 115, 138, 154, 161, 165, 210, 230, 231, 253, 322, 330, 345, 385, 401, 462, 483, 506, 690, 759, 770, 802, 805, 966, 1155, 1203, 1265, 1518, 1610, 1771, 2005, 2310, 2406, 2415, 2530, 2807, 3542, 3795, 4010, 4411, 4830, 5313, 5614, 6015, 7590, 8421, 8822, 8855, 9223, 10626, 12030, 13233, 14035, 16842, 17710, 18446, 22055, 26466, 26565, 27669, 28070, 30877, 42105, 44110, 46115, 53130, 55338, 61754, 64561, 66165, 84210, 92230, 92631, 101453, 129122, 132330, 138345, 154385, 185262, 193683, 202906, 276690, 304359, 308770, 322805, 387366, 463155, 507265, 608718, 645610, 710171, 926310, 968415, 1014530, 1420342, 1521795, 1936830, 2130513, 3043590, 3550855, 4261026, 7101710, 10652565, 21305130]

約数ペア:

[(1, 21305130), (2, 10652565), (3, 7101710), (5, 4261026), (6, 3550855), (7, 3043590), (10, 2130513), (11, 1936830), (14, 1521795), (15, 1420342), (21, 1014530), (22, 968415), (23, 926310), (30, 710171), (33, 645610), (35, 608718), (42, 507265), (46, 463155), (55, 387366), (66, 322805), (69, 308770), (70, 304359), (77, 276690), (105, 202906), (110, 193683), (115, 185262), (138, 154385), (154, 138345), (161, 132330), (165, 129122), (210, 101453), (230, 92631), (231, 92230), (253, 84210), (322, 66165), (330, 64561), (345, 61754), (385, 55338), (401, 53130), (462, 46115), (483, 44110), (506, 42105), (690, 30877), (759, 28070), (770, 27669), (802, 26565), (805, 26466), (966, 22055), (1155, 18446), (1203, 17710), (1265, 16842), (1518, 14035), (1610, 13233), (1771, 12030), (2005, 10626), (2310, 9223), (2406, 8855), (2415, 8822), (2530, 8421), (2807, 7590), (3542, 6015), (3795, 5614), (4010, 5313), (4411, 4830)]