21121236

素因数分解:

$2^2\times 3^4\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1$

素因数の和:155

約数の個数: 120

約数和(自身を含む): 60170880

約数和(自身を除く): 39049644

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 27, 36, 38, 47, 54, 57, 73, 76, 81, 94, 108, 114, 141, 146, 162, 171, 188, 219, 228, 282, 292, 324, 342, 423, 438, 513, 564, 657, 684, 846, 876, 893, 1026, 1269, 1314, 1387, 1539, 1692, 1786, 1971, 2052, 2538, 2628, 2679, 2774, 3078, 3431, 3572, 3807, 3942, 4161, 5076, 5358, 5548, 5913, 6156, 6862, 7614, 7884, 8037, 8322, 10293, 10716, 11826, 12483, 13724, 15228, 16074, 16644, 20586, 23652, 24111, 24966, 30879, 32148, 37449, 41172, 48222, 49932, 61758, 65189, 72333, 74898, 92637, 96444, 112347, 123516, 130378, 144666, 149796, 185274, 195567, 224694, 260756, 277911, 289332, 370548, 391134, 449388, 555822, 586701, 782268, 1111644, 1173402, 1760103, 2346804, 3520206, 5280309, 7040412, 10560618, 21121236]

約数ペア:

[(1, 21121236), (2, 10560618), (3, 7040412), (4, 5280309), (6, 3520206), (9, 2346804), (12, 1760103), (18, 1173402), (19, 1111644), (27, 782268), (36, 586701), (38, 555822), (47, 449388), (54, 391134), (57, 370548), (73, 289332), (76, 277911), (81, 260756), (94, 224694), (108, 195567), (114, 185274), (141, 149796), (146, 144666), (162, 130378), (171, 123516), (188, 112347), (219, 96444), (228, 92637), (282, 74898), (292, 72333), (324, 65189), (342, 61758), (423, 49932), (438, 48222), (513, 41172), (564, 37449), (657, 32148), (684, 30879), (846, 24966), (876, 24111), (893, 23652), (1026, 20586), (1269, 16644), (1314, 16074), (1387, 15228), (1539, 13724), (1692, 12483), (1786, 11826), (1971, 10716), (2052, 10293), (2538, 8322), (2628, 8037), (2679, 7884), (2774, 7614), (3078, 6862), (3431, 6156), (3572, 5913), (3807, 5548), (3942, 5358), (4161, 5076)]