221445978

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1$

素因数の和:248

約数の個数: 128

約数和(自身を含む): 540836352

約数和(自身を除く): 319390374

約数列:

[1, 2, 3, 6, 13, 17, 23, 26, 34, 39, 46, 51, 53, 69, 78, 102, 106, 137, 138, 159, 221, 274, 299, 318, 391, 411, 442, 598, 663, 689, 782, 822, 897, 901, 1173, 1219, 1326, 1378, 1781, 1794, 1802, 2067, 2329, 2346, 2438, 2703, 3151, 3562, 3657, 4134, 4658, 5083, 5343, 5406, 6302, 6987, 7261, 7314, 9453, 10166, 10686, 11713, 13974, 14522, 15249, 15847, 18906, 20723, 21783, 23426, 30277, 30498, 31694, 35139, 40963, 41446, 43566, 47541, 53567, 60554, 62169, 70278, 81926, 90831, 94393, 95082, 107134, 122889, 123437, 124338, 160701, 167003, 181662, 188786, 245778, 246874, 269399, 283179, 321402, 334006, 370311, 501009, 538798, 566358, 696371, 740622, 808197, 1002018, 1392742, 1604681, 1616394, 2089113, 2171039, 2839051, 3209362, 4178226, 4342078, 4814043, 5678102, 6513117, 8517153, 9628086, 13026234, 17034306, 36907663, 73815326, 110722989, 221445978]

約数ペア:

[(1, 221445978), (2, 110722989), (3, 73815326), (6, 36907663), (13, 17034306), (17, 13026234), (23, 9628086), (26, 8517153), (34, 6513117), (39, 5678102), (46, 4814043), (51, 4342078), (53, 4178226), (69, 3209362), (78, 2839051), (102, 2171039), (106, 2089113), (137, 1616394), (138, 1604681), (159, 1392742), (221, 1002018), (274, 808197), (299, 740622), (318, 696371), (391, 566358), (411, 538798), (442, 501009), (598, 370311), (663, 334006), (689, 321402), (782, 283179), (822, 269399), (897, 246874), (901, 245778), (1173, 188786), (1219, 181662), (1326, 167003), (1378, 160701), (1781, 124338), (1794, 123437), (1802, 122889), (2067, 107134), (2329, 95082), (2346, 94393), (2438, 90831), (2703, 81926), (3151, 70278), (3562, 62169), (3657, 60554), (4134, 53567), (4658, 47541), (5083, 43566), (5343, 41446), (5406, 40963), (6302, 35139), (6987, 31694), (7261, 30498), (7314, 30277), (9453, 23426), (10166, 21783), (10686, 20723), (11713, 18906), (13974, 15847), (14522, 15249)]