20178943389

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1\times {\mathrm{21011}}^1$

素因数の和:21226

約数の個数: 48

約数和(自身を含む): 32450932800

約数和(自身を除く): 12271989411

約数列:

[1, 3, 9, 11, 33, 89, 99, 109, 267, 327, 801, 979, 981, 1199, 2937, 3597, 8811, 9701, 10791, 21011, 29103, 63033, 87309, 106711, 189099, 231121, 320133, 693363, 960399, 1869979, 2080089, 2290199, 5609937, 6870597, 16829811, 20569769, 20611791, 25192189, 61709307, 75576567, 185127921, 203827711, 226729701, 611483133, 1834449399, 2242104821, 6726314463, 20178943389]

約数ペア:

[(1, 20178943389), (3, 6726314463), (9, 2242104821), (11, 1834449399), (33, 611483133), (89, 226729701), (99, 203827711), (109, 185127921), (267, 75576567), (327, 61709307), (801, 25192189), (979, 20611791), (981, 20569769), (1199, 16829811), (2937, 6870597), (3597, 5609937), (8811, 2290199), (9701, 2080089), (10791, 1869979), (21011, 960399), (29103, 693363), (63033, 320133), (87309, 231121), (106711, 189099)]