19392388

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:220

約数の個数: 48

約数和(自身を含む): 37497600

約数和(自身を除く): 18105212

約数列:

[1, 2, 4, 19, 38, 47, 61, 76, 89, 94, 122, 178, 188, 244, 356, 893, 1159, 1691, 1786, 2318, 2867, 3382, 3572, 4183, 4636, 5429, 5734, 6764, 8366, 10858, 11468, 16732, 21716, 54473, 79477, 103151, 108946, 158954, 206302, 217892, 255163, 317908, 412604, 510326, 1020652, 4848097, 9696194, 19392388]

約数ペア:

[(1, 19392388), (2, 9696194), (4, 4848097), (19, 1020652), (38, 510326), (47, 412604), (61, 317908), (76, 255163), (89, 217892), (94, 206302), (122, 158954), (178, 108946), (188, 103151), (244, 79477), (356, 54473), (893, 21716), (1159, 16732), (1691, 11468), (1786, 10858), (2318, 8366), (2867, 6764), (3382, 5734), (3572, 5429), (4183, 4636)]