20874844

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{151}}^1$

素因数の和:298

約数の個数: 48

約数和(自身を含む): 41368320

約数和(自身を除く): 20493476

約数列:

[1, 2, 4, 17, 19, 34, 38, 68, 76, 107, 151, 214, 302, 323, 428, 604, 646, 1292, 1819, 2033, 2567, 2869, 3638, 4066, 5134, 5738, 7276, 8132, 10268, 11476, 16157, 32314, 34561, 48773, 64628, 69122, 97546, 138244, 195092, 274669, 306983, 549338, 613966, 1098676, 1227932, 5218711, 10437422, 20874844]

約数ペア:

[(1, 20874844), (2, 10437422), (4, 5218711), (17, 1227932), (19, 1098676), (34, 613966), (38, 549338), (68, 306983), (76, 274669), (107, 195092), (151, 138244), (214, 97546), (302, 69122), (323, 64628), (428, 48773), (604, 34561), (646, 32314), (1292, 16157), (1819, 11476), (2033, 10268), (2567, 8132), (2869, 7276), (3638, 5738), (4066, 5134)]