21110752

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1637}}^1$

素因数の和:1691

約数の個数: 48

約数和(自身を含む): 46230912

約数和(自身を除く): 25120160

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 104, 124, 208, 248, 403, 416, 496, 806, 992, 1612, 1637, 3224, 3274, 6448, 6548, 12896, 13096, 21281, 26192, 42562, 50747, 52384, 85124, 101494, 170248, 202988, 340496, 405976, 659711, 680992, 811952, 1319422, 1623904, 2638844, 5277688, 10555376, 21110752]

約数ペア:

[(1, 21110752), (2, 10555376), (4, 5277688), (8, 2638844), (13, 1623904), (16, 1319422), (26, 811952), (31, 680992), (32, 659711), (52, 405976), (62, 340496), (104, 202988), (124, 170248), (208, 101494), (248, 85124), (403, 52384), (416, 50747), (496, 42562), (806, 26192), (992, 21281), (1612, 13096), (1637, 12896), (3224, 6548), (3274, 6448)]