21878388

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{5107}}^1$

素因数の和:5141

約数の個数: 72

約数和(自身を含む): 66935232

約数和(自身を除く): 45056844

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 17, 18, 21, 28, 34, 36, 42, 51, 63, 68, 84, 102, 119, 126, 153, 204, 238, 252, 306, 357, 476, 612, 714, 1071, 1428, 2142, 4284, 5107, 10214, 15321, 20428, 30642, 35749, 45963, 61284, 71498, 86819, 91926, 107247, 142996, 173638, 183852, 214494, 260457, 321741, 347276, 428988, 520914, 607733, 643482, 781371, 1041828, 1215466, 1286964, 1562742, 1823199, 2430932, 3125484, 3646398, 5469597, 7292796, 10939194, 21878388]

約数ペア:

[(1, 21878388), (2, 10939194), (3, 7292796), (4, 5469597), (6, 3646398), (7, 3125484), (9, 2430932), (12, 1823199), (14, 1562742), (17, 1286964), (18, 1215466), (21, 1041828), (28, 781371), (34, 643482), (36, 607733), (42, 520914), (51, 428988), (63, 347276), (68, 321741), (84, 260457), (102, 214494), (119, 183852), (126, 173638), (153, 142996), (204, 107247), (238, 91926), (252, 86819), (306, 71498), (357, 61284), (476, 45963), (612, 35749), (714, 30642), (1071, 20428), (1428, 15321), (2142, 10214), (4284, 5107)]